ASME_B1-15_-_1995

Errata to

ASME Bl.15-1995 Unified Inch Screw Threads

(UNJ Thread Form)

The Errata corrections listed below and appearing herein apply to ASME B1.15-1995, Unified Inch Screw Threads (UNJ Thread Form). Corrections are incorporated directly into the affected pages and are indicated by a margin note, (E). The pages show the corrections given below. The pages not listed are the reverse sides of the listed pages and contain no changes.

Page Location Change

1 1.1 In fourth line, 0.600 changed to 0.060

4 Fig. 2 (I) D1 max. changed to D2 max. (2) D l min. = D2 bsc changed to D2 min. = 0 2 bsc (3) TD1/2 changed to TD2/2

5 Fig. 3 ( I ) d , max. = d l bsc changed to-dl rnax. = d2 bsc (2 ) d l min. changed to d2 min. ( 3 ) TdJ2 changed to Td2/2 (4) In General Note, “(See para. 5.3)” changed to read:

“(See para. 2.3)”

9

10

11

51

Fig. 4

4.1

4.3

4.4.2(b)

4.4.2(c)

A2

Sentence added to Note (1) reading: “X equal or greater than 0.150 1 1 P.’’

In fourth line. “length” changed to read: “lengths”

In second line, delete ( T )

In second Example, fourth line, Lead tolerance of 0.009 in. changed to 0.0009 in.

In Example, fourth line, 0.009 changed to 0.0009

Under MINOR DIAMETER: (1) “dl basic minor diameter“ changed to “dl bsc basic

( 2 ) “d; maximum minor diameter” changed to “dl max minor diameter”

maximum minor diameter”

MARCH 1997 THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

345 East 47th Street, New York, NY 10017 N0131E

Copyright ASME International Provided by IHS under license with ASME

Document provided by IHS Licensee=ExxonMobil/1890500101, 03/23/2004 22:29:39MST Questions or comments about this message: please call the Document PolicyGroup at 303-397-2295.

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~

STD-ASME BI-15-ENGL L775 = 0757b70 058U42b 757

ASME 61.15-1995

UNIFIED INCH SCREW THREADS (UNJ THREAD FORM)

SECTION 1 GENERAL

(E) 1.1 Scope

This Standard establishes' the basic triangular profile for the UNJ thread form, provides a system of designations, lists the standard series of diameter- pitch combinations for diameters from 0.060 to 6.000 in., and specifies limiting dimensions and tolerances.

It specifies the characteristics of the UNJ inch series of threads having 0.1501 1P to 0.18042P designed radius at the root of the external thread, and also having the minor diameter of the external and internal threads increased above the ASME B1.1 UN and UNR thread forms to accommodate the external thread maximum root radius.

1.2 Field of Application

The UNJ screw thread is designed for aerospace inch threaded parts, or for use on other highly stressed applications requiring high fatigue strength. For aerospace applications, only Classes 3A and 3B should be used.

1.3 Assembly

Threads conforming to the UN profile (ASME B1.1) and the UNJ profile are not interchangeable because of possible interference between the UNJ external thread minor diameter and the UN internal thread minor diameter. However, the UNJ internal thread will assemble with the UN external thread.

1.4 Federal Government Use

When this Standard is approved by the Department of Defense and federal agencies and is incorporated into FED-STD-H28/4, Screw Thread Standards for Federal Services, Section 4, the use of this Standard by the federal government is subject to all the requirements and limitations of FED-STD-H28/4.

1.5 References

The latest issues of the following documents form a part of this Standard to the extent specified herein.

American National Standards ASME B1.1 , Unified Inch Screw Threads (UN and

ASME B1.3M, Screw Thread Gaging Systems for

ANWASME B1.7M, Nomenclature, Definitions,

ASME B1.23l, Gages and Gaging for Unified Inch

ASME B1.30M, Screw Threads - Standard Prac-

UNR Thread Form)

Dimensional Acceptability

and Letter Symbols for Screw Threads

J Series Screw Threads

tice for Calculating and Rounding Dimensions

'Proposed ASME Standard under development by The Amer- ican Society of Mechanical Engineers.

1



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SECTION 2 PROFILE OF THREAD

ASME 61.15-1995

2.1 Basic Profile flanks for the upper limit profile. For Class 2A, an

The basic profile is the theoretical profile corre- sponding to the basic dimensions of the thread major diameter, pitch diameter, and minor diameter. Profile

allowance is applied to the basic profile. The external thread crest may be flat, partially or corner rounded, tangent to the 0.125P flat. See Fig. 3.

applies to an axial plane. The basic profile is shown in Fig. 1. 2.4 Root Radius of the Thread

2.2 Basic Thread Profile Symbols

The symbols used in the basic profile shown in Fig.

D bsc = basic major diameter of internal thread D2 bsc = basic pitch diameter of internal thread Dl bsc = basic minor diameter of internal thread

d bsc = basic major diameter of external thread d2 bsc = basic pitch diameter of external thread dl bsc = basic minor diameter of external thread

1 represent the following:

H = height of fundamental triangle P = pitch

Appendix A provides a complete list of symbols applicable to the UNJ thread form.

2.3 Design Profiles

2.4.1 Internal Thread. For internal threads, the profile of the actual root of the thread shall at no point be below the basic profile. No root radius is specified.

2.4.2 External Thread. For external threads, the profile of the actual root of the thread shall lie within the root radius tolerance zone shown in Fig. 4. The limit dimensions of the root radius R as shown in Fig. 4 and their values are specified in Table 4. The profile shall be a continuous smoothly blended nonreversing curve, no part of which shall have a radius of less than 0.15011P and which is tangent to the thread flanks at not less than 0.5625H basic thread depth. The profile may comprise tangent flank circular arcs that are tangent to the flanks and a flat at the minor diameter provided that the minor diameter, d,, is within the zone established in Fig, 4.

The design profile for the internal thread at max- 2.4.3 Incomplete Threads. Unless otherwise imum-material conditions is the same as the basic specified, the runout threads on externally threaded profile, except in practice, the root is cleared above parts shall be no less than 1, nor more than 2 pitches the basic major diameter, D bsc. See Fig. 2. in length. The threads shall run-out onto the shank

The design profile for the external thread at max- without any abrupt change in cross-sectional area. imum-material condition for Class 3A is the basic The root radius shall be no less than the minimum profile with a radiused minor diameter tangent to the radius of the full thread section.

3



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ASME 81.15-1995

FIG. 1 BASIC PROFILE


FIG. 2 INTERNAL UNJ THREAD DESIGN PROFILE AND TOLERANCES

4



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UNIFIED INCH SCREW THREADS (UNJ THREAD FORM) ASME 81.15-1995

GENERAL NOTE: Rounded crest is optional (See para. 2.3)

9'

FIG. 3 EXTERNAL UNJ THREAD DESIGN PROFILE AND TOLERANCES

R max. = 0.18042P

R min. =0.150llP

Lower limit profile

NOTES: (1) Optional profile comprising two circular arcs

(X) tangent to the flanks and fiat at the root. X equal or greater than 0.15011f.

(21 Min. truncation (3) Max. truncation (4) Tangent flank radii (minor dia.)

FIG. 4 ROOT RADIUS OF EXTERNAL THREAD

5



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SECTION 4 THREAD CHARACTERISTICS

4.1 Length of Thread Engagement, LE

Tolerances specified in Table 5 are based on a length of engagement equal to the basic major diameter for the UNJC, UNJF, and 8-UNJ series and are applicable for lengths of engagement up to 1.5 diameters; and a length of engagement of 9 pitches for the UN- JEF, IZUNJ, and 16-UNJ series, and are applicable for lengths of engagement of 5 to 15 pitches.

For lengths of engagement over 1.5 (to and including 3 diameters) or over 15 (to and including 30 pitches), the pitch diameter tolerances are 1.25 times the tabulated values. For lengths of engagement over 3 diameters or 30 pitches, the pitch diameter tolerances are 1.5 times the tabulated values.

In addition to increasing pitch diameter tolerances for long lengths of engagement, maximum-material gages (GO) used for acceptance shall be equal in length to the design length of engagement.

4.2 Tolerance System

The system of tolerances and allowances is based on ASME B1.1 inch screw thread system of tolerance classes. Tolerances and allowances are applied plus for internal threads and minus for external threads.

4.3 Limits of Size

The basic profile dimensions are given in Table 1. The profile dimensions and tolerances shown in Figs. 2 and 3 and their values for the standard series are specified in Table 5 . For special threads for which there are no tabulated values, use the formulas in paras. 4.3.1 through 4.3.4, together with the tolerance table in Appendix B. Constants for the special thread formulas are given in Table 3.

NOTE: The dimensions and tolerances listed in Table 5 have been calculated and rounded to the procedures specified in ASME B1.30. As a consequence, a few of the values listed vary from 0.0001 in. to 0.0002 in. from listed values in previously issued standards for UN and UNJ inch threads.

ASME B1.15-1995

4.3.1 External Threads - Class 3A

d max. = d bsc

d min. = d max. - Td

Td = 0.060

d2 max. = d max. - 0.649519P [see Table 31

d2 min. = d2 max. - Td2

Td2=0.750 (0.0015 6 + O . O 0 1 5 a + 0 . 0 1 5 P) NOTE: Figures within parentheses are rounded to six decimal places before multiplying by 0.750.

d3 max.=d2 max. -0.50518P [see Table 31

d3 min. = d2 min. - 0.56580P [see Table 31

Td3 = d3 max. - d3 min.

R max. = 0.18042P [see Table 41

R min.=0.15011P [see Table 41

4.3.2 Internal Threads - Class 3B

D min. = D bsc

D max. = D2 max. +0.79386P [see.Table 31

D2 min. = D bsc - 0.649519P [see Table 31

D2 max. = D2 min. + TD2

TD2=0.975 (0.0015 =+O.O015 -+0.015 P) NOTE: Figures within parentheses are rounded to six decimal places before multiplying by 0.975.

D, min. = D min. - 0.97428P [see Table 31

NOTE: Round up to the next larger fourth place decimal, unless the fifth place is zero.

D, max. =Dl min. + TD,

Td=0.060*

For threads 13 threads per inch and finer:

NOTE: TD, may not exceed 0.259809P or be less than 0.135315P.

9



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S T D - A S M E BI-15-ENGL L775 0757b70 0580431 014 a

ASME 61.15-9995

For threads with 12 threads per inch or coarser:

TD1= 0.120P


dmax.=dbsc-es

es=0.300 ( 0 . 0 0 1 5 ~ + 0 . 0 0 1 5 6 + 0 . 0 1 5 * )

NOTE: Figures within parentheses are rounded to six decimal places before multiplying by 0.300.

d min. =d max. - Td

Td= 0.060

d2 max. = d max. - 0.649519P [see Table 31


T d 2 = 0 . 0 0 1 5 ~ + 0 . 0 0 1 5 C E + 0 . 0 1 5 *

d3 max. = d2 max. - 0.50518P [see Table 31

d3 min. =d2 min. - 0.56580P [see Table 31

Td3 = d3 max. - d3 rnin.

R max. =0.18042P [see Table 41

R min. =0.15011P [see Table 41


D min. =D bsc

D max. = D2 max. + 0.79386P [see Table 31

D2 min. =D min. -0.649519P [see Table 31


TDz= 1.300 ( 0 . 0 0 1 5 ~ + 0 . 0 0 1 5 f i + O . O 1 5 * )


Dl min. =D min. - 0.97428P [see Table 31

NOTE: Round up to the nearest 0.001 in. for sizes 0.138 in. and larger.

Dl max. =D1 min. + TD1


NOTE: TD, may not exceed 0.259809P or be less than 0.135319’.


TD1= 0.120P


4.4 Thread Form Tolerances

4.4.1 Cumulative form variation is the combined effect on functional size due to individual thread form variations in lead (pitch), helix, flank angle, taper, and roundness.

When measurement is specified for Classes 3A and 3B threads, cumulative form tolerance shall be 0.5 times pitch diameter tolerance. If not specified, control shall be by the required system gages.

4.4.2 Lead and Flank Angle Variations (a) When individual inspection of lead (including

helix) and flank angle variations are required, the allowable variations for these characteristics shall be in accordance with Tables 6 and 7 unless otherwise specified.

(b) For sizes not included in Tables 6 and 7, the allowable lead variation is equal to 0.57735 times one- half the pitch diameter tolerance. This is the lead variation which causes a change in functional diameter equal to 0.5 times the pitch diameter tolerance. The allowable flank half-angle variation in minutes of arc is equal to 30 plus 1.875 times the number of threads per inch rounded to the nearest 5 minutes for 32 threads per inch and coarser, and 62 plus 0.775 times the number of threads per inch rounded tQ the nearest 5 minutes for threads finer than 32 threads per inch.

EXAMPLE: 0.945-8.5 UNJS-3A; lead and angle control required. No lead and angle tolerances were specified nor do default values

appear in Tables 6 and 7. Values are calculated as follows: Lead tolerance= 0.57735 X 0.5 Td2 Pitch diameter tolerance Td2 = 0.0050 Lead tolerance=0.57735 X 0.5 xO.OO50=0.0014 in. Angle tolerance (for coarser than 32 tpi) = 30 + (1.875 x tpi) Angle tolerance= 30+ (1.875 x 8.5)

= 45.94 minutes = 45 minutes when rounded to nearest 5 minutes

EXAMPLE: (El 0.500-41 UNJSJB; lead and angle control required. Lead tolerance = 0.57735 x 0.5 Tdz Pitch diameter tolerance Td2 = 0.0031 Lead tolerance = 0.57735 X 0.5 X 0.0031 = 0.0009 in. Angle tolerance (for finer than 32 tpi) = 62 + (0.775 x tpi) Angle tolerance = 62 + (0.775 x 41)

= 93.78 minutes = 1 degree and 35 minutes when rounded to near-

est 5 minutes

(C) If lead and angle tolerances are specified as a pitch diameter equivalent in terms of pitch diameter tolerance, tolerances in accordance with para. 4.4.2(a) or para. 4.4.2(b) may be adjusted proportionately using 0.5 times pitch diameter tolerance as a basis.

10



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STD-ASME BL:L5-ENGL L775 = 0757b70 0580432 T50


(E) EXAMPLE: 0.5000-20 UNJF-3A (22s); lead and angle control required -

0.4 PD tolerance. From Table 6 , allowable lead variation is O.ooo9 in. This would

be adjusted to 0.4/0.5 times O.ooo9 which is 0.0007 in. From Table 7, allowable angle variation is 1 degree 10 minutes

or 70 minutes. This would be adjusted to 0.4/0.5 times 70 which is 56 minutes or 55 minutes when rounded.

(d) For requirements of (a) and (b) above, lead variation values tabulated or calculated are the maximum variations from specified lead between any two points not farther apart than the length of the maximum-material (GO) thread gage. Flank angle variation values are maximum variations from the basic 30 deg angle between thread flanks and perpendicu- lars to the thread axis.

ASME 61.15-1995

(e) Allowable variations in lead and flank angles are maximum values. Maximum variation in these and pitch diameter tolerance cannot be taken simul- taneously.

4.4.3 Runout of Major Diameter and Minor Di- ameter to Pitch Cylinders. When measurement is specified, maximum circular runout shall be limited to a full indicator movement equal to the pitch diameter tolerance.

4.4.4 Taper. If the pitch cylinder is conical, the difference in pitch diameters between the ends of the thread are an indication of taper. When measurement is required, it shall be specified. If not specified, allowable taper is no greater than the pitch diameter tolerance. &”

11



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,

(1)

Thre

ads

per

in.,

n

80

72

64

56

48

44

40

36

32

28

2 4

20

18

16

14

13

12

11

10 9 8 7 6 5 4.5

4

C1

t4

(2)

Pitc

h

p=

- 1 n

0.012500

0.013889

0.01 5625

0.017857

0.020833

0.022727

0.025000

0.027778

0.031250

0.03571 4

0.041667

0.050000

0.055556

0.062500

0.07 1429

0.076923

0.083333

0.090909

0.1 00000

0.111111

0.125000

0.142857

0.1

66667

0.200000

0.222222

0.250000

(3)

Pitc

h L

ine

0.5

P

0.006250

0.006944

0.00781 2

0.008928

0.01 041

6 0.01 1363

0.012500

0.01 3889

0.01 5625

0.017857

0.020833

0.025000

0.027778

0.031250

0.03571 4

0.038461

0.041666

0.045454

0.050000

0.055555

0.062500

0.071428

0.083333

0.1 00000

0.111111

0.1

25000

TAB

LE 1

B

ASI

C P

RO

FILE

DIM

EN

SIO

NS

(4)

Flat

at

Inte

rnal

Th

read

Cre

st

0.31

25 P

0.00391

0.00434

0.00488

0.00558

0.00651

0.0071 0

0.00781

0.00868

0.00977

0.01 1 16

0.01 302

0.01 562

0.01 736

0.01 953

0.02232

0.02404

0.02604

0.02841

0.03125

0.03472

0.03906

0.04464

0.05208

0.06250

0.06944

0.0781 2

(5)

Flat

at

Inte

rnal

Th

read

Roo

t an

d E

xter

nal

Thre

ad C

rest

0.

125

P

0.001

56

0.001

74

0.001

95

0.00223

0.00260

0.00284

0.0031 2

0.00347

0.00391

0.00446

0.0052 1

0.00625

0.00694

0.00781

0.00893

0.00962

0.01 042

0.01 136

0.01250

0.01 389

0.01 562

0.01786

0.02083

0.02500

0.02778

0.031

25

(6)

Hei

ght

of

Sha

rp V

Th

read

H

0.86

6025

P

0.01 0825

0.01 2028

0.01 3532

0.01 5465

0.01 8042

0.01 9682

0.021651

0.024056

0.027063

0.030929

0.036084

0.043301

0.0481 13

0.0541 27

0.061859

0.06661 7

0.0721 69

0.078730

0.086603

0.096225

0.108253

0.123718

0.144338

0.173205

0.192450

0.21 6506

(7)

Hei

ght o

f In

tern

al

Thre

ad a

nd

Dep

th o

f Th

read

E

ngag

emen

t 0.

5625

H=

0.

4871

39 P

0.00609

0.00677

0.00761

0.00870

0.0101 5

0.01 107

0.01218

0.01353

0.01 522

0.01740

0.02030

0.02436

0.02706

0.03045

0.03480

0.03747

0.04059

0.04429

0.04871

0.0541 3

0.06089

0.06959

0.081 19

0.09743

0.10825

0.12178

Md

end

um

oi

Ext

erna

l Th

read

0;

375

H=

0.

3247

60 P

0.00406

0.00451

0.00507

0.00580

0.00677

0.00738

0.00812

0.00902

0.01 01

5

0.01 160

0.01 353

0.01 624

0.01 804

0.02030

0.02320

0.02498

0.02706

0.02952

0.03248

0.03608

0.04059

0.04639

0.0541 3

0.06495

0.0721 7

0.081

19

(9)

Trun

catio

n o

f In

tern

al

Thre

ad C

rest

0.

3125

H=

0.

2706

33 P

0.00338

0.00376

0.00423

0.00483

0.00564

0.0061 5

0.00677

0.00752

0.00846

0.00967

0.01 128

0.01 353

0.01 504

0.01691

0.01 933

0.02082

0.02255

0.02460

0.02706

0.03007

0.03383

0.03866

0.0451 0

0.0541 3

0.0601 4

0.06766

(1 0)

rrun

catio

n o

f In

tern

al

Thre

ad R

oot

and

Ext

erna

l Th

read

Cre

st

0.12

5 H

=

0.10

8253

P

0.00135

0.001

50

0.001

69

0.001

93

0.00226

0.00246

0.00271

0.00301

0.00338

0.00387

0.00451

0.00541

0.00601

0.00677

0.00773

0.00833

0.00902

0.00984

0.01 083

0.01 203

0.01 353

0.01 546

0.01 804

0.021

65

0.02406

0.02706

(1

1)

Hal

f N

dden

dum

of

Ext

erna

l Th

read

. R

EFER

ENC

E O

NLY

0.

1875

H=

0.

1 623

8 P

0.00203

0.00226

0.00254

0.00290

0.00338

0.00369

0.00406

0.00451

0.00507

0.00580

0.00677

0.0081 2

0.00902

0.01 01

5 0.01 160

0.01 249

0.01353

0.01476

0.01624

0.01804

0.02030

0.02320

0.02706

0.03248

0.03608

0.04059

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APPENDIX A SYMBOLS - UNJ THREAD DIMENSIONS AND TOLERANCES

(This Appendix is not part of ASME 81.15-1995 and is included for information only.)

A l INTERNAL THREAD DIMENSION SYMBOLS

D D bsc D min

D1 D1 bsc Dl max D, min

D2 D2 bsc D2 max D2 min

D3

D3 max

T TD1 TD2

MAJOR DIAMETER, int. thd basic major diameter minimum major diameter

MINOR DIAMETER, int. thd basic minor diameter maximum minor diameter minimum minor diameter

PITCH DIAMETER, int. thd basic pitch diameter maximum pitch diameter minimum pitch diameter

MAJOR DIAMETER, int. thd (ROUNDED FORM) maximum major diameter

TOLERANCE minor diameter tol., int. thd pitch diameter tol., int. thd

A2 EXTERNAL THREAD DIMENSION SYMBOLS

d d bsc d rnax d min

dl dl bsc dl rnax

d2 d2 bsc d2 rnax d2 min

d3

d3 max d3 min

R R max R min

T Td Td2 Td3

MAJOR DIAMETER, ext. thd basic major diameter maximum major diameter minimum major diameter

MINOR DIAMETER, ext. thd basic minor diameter maximum minor diameter

PITCH DIAMETER, ext. thd basic pitch diameter maximum pitch diameter minimum pitch diameter

MINOR DIAMETER, ext. (ROUNDED FORM) maximum minor diameter minimum minor diameter

ROOT RADIUS, ext. thd maximum root radius minimum root radius

TOLERANCE major diameter tol., ext. thd pitch diameter tol., ext. thd root diameter tol., ext. thd

LE LENGTH OF THD ENGAGEMENT LG GAGING LENGTH es ALLOWANCE, external thread

H HEIGHT, sharp vee thd P PITCH a FLANK HALF-ANGLE UNJ THREAD FORM SYMBOL

51



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AN ASME STANDARD

Unified Inch Screw

Threads (UNJ Thread Form)

ASME B1.15-1995

The American Society of Mechanical Engineers

345 East 47th Street, New York, N.Y.



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ASME 81.15 95 m 0759670 0565753 L A B

Date of Issuance: August 15, 1995

This Standard will be revised when the Society approves the issuance of a new edition. There will be no addenda or written interpretations of the requirements of this Standard issued to this Edition.

ASME is the registered trademark of The American Society of Mechanical Engineers.

This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Consensus Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment which provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.

ASME does not "approve," "rate," or "endorse" any item, construction, proprietary device, or activity.

ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable Letters Patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility.

Participation by federal agency representative(s) or person@) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard.

ASME accepts responsibility for only those interpretations issued in accordance with governing ASME procedures and policies which preclude the issuance of interpretations by individual volun- teers.

No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise,

without the prior written permission of the publisher.

Copyright 0 1995 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

All Rights Reserved Printed in U.S.A.



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FOREWORD

(This Foreword is not part of ASME 81.15-1995.)

This Standard is similar to Military Specification MIL-S-8879 and equivalent to ISO- 3161-1977 for thread Classes 3A and 3B. British Standard BS 4084:1978 including Amend- ment 1 is technically identical to ISO-3161-1977 except for Appendix A which provides information for a 20 UNJ constant pitch series for diameters through 3 inches.

The UNJ thread form, having the enlarged root radius in the external thread, was introduced for applications requiring high fatigue strength where working stress levels are high, in order to minimize size and weight in parts, as in aerospace applications and also for other designs in commercial products where stresses are critical. To meet these requirements, the UNJ external thread root radius is designed between 0.1501 1P to 0. I8042P and the minor diameter of the mating internal thread is increased to ensure the necessary clearance.

This Standard includes Classes 2A and 2B UNJ screw threads. Either Class 3 or Class 2 UNJ threads are appropriate for commercial applications commensurate with the fatigue and stress levels required.

It is not recommended that Classes 2A and 2B threads be used for aerospace applications. Only UNJ thread Classes 3A and 3B meet the requirements of Military Specification MIL- S-8879.

NOTE: In what follows, the symbols H and h are used. H is defined as the height of the sharp vee thread formed by extending the thread flanks until they meet. H is equal to 0.866025 times the pitch, P. The symbol h is equal to 0.75 times H and represents the theoretical height of the American National thread form. It is still used as the basis for the value called percent of thread.

The UNJ thread form is the UN thread form modified to '/M H or 75% h basic thread depth which allows the 0.18042P maximum root radius in the external thread. The first known U.S. standard of similar thread form was the Society of Automotive Engineers Aeronautical Standard AS 82 published in March 1942, which is a modified American National thread form to 75% h basic thread depth and specifying 0.108P-0.18OP root radius in the external thread. This thread was symbolized NR, National Round, and was developed for aircraft engine applications.

Tension-tension fatigue testing of aircraft fasteners in 1942 demonstrated the importance of the external thread root contour in the fatigue life of a screw thread rolled after heat treatment. Fatigue testing isolated the following elements of good external thread root design:

The root should be radiused, not sharp.

Theoretically, it should be a continuous circular arc, blending smoothly with the thread flanks.

The radius should be as large as possible within the allowable design form.

The root contour should be smooth throughout, free of any imperfections, tool marks, or other minor notches.

111 ...



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Recognizing the need for improved 160,000 psi tensile strength bolts, the Military Services published in April 1952, MIL-B-7838A bolt procurement specification for aircraft applications based on the Unified thread form having 83’/3Vo h Unified thread form. Thus, larger external root radius requires a shallower internal thread depth to clear the flank tangency point. Although the Unified internal thread standards for tap drill sizes permit depths of more than 75% h, production rarely used these drills because deeper tapping of internal threads is generally not considered economically practical. A few internal threads have depths as great as 70% h, but the vast majority lie between 60% and 68% h.

Since internal threads are generally less than 75% h basic thread depth, the root radius of the external thread was increased to 0.150P min. and 0.18OP max. for the 180,000 psi and higher tensile strength bolts. This external thread form was developed in 1955 by the aerospace fastener industry and was known as the “Hi R” thread form.

Through the coordinated effort with the Aerospace Engine and Propeller Utility Stan- dards parts Committee E25 of SAE and the AIA National Aerospace Standards Committee NASC, the Air Force and Navy developed and published in September 1960, the thread specification MIL-S-8879 which features the “Hi R” thread root radius in the external thread and the internal thread modified to 9/16 H basic or 75% h thread depth.

With the advent of aircraft gas turbine engines, the high temperature threaded fasteners developed better elevated temperature performance using MIL-S-8879 UNJ thread root radius, in that the stress-rupture life of bolts was greatly improved.

The UNJ thread form has been adopted by the aerospace industry as the all-purpose thread standard, with the exception of electrical hardware and thread sizes 0.138 and smaller, which may use the UN thread form.

Suggestions for improvement of this Standard will be welcome. They should be sent to The American Society of Mechanical Engineers, Att: Secretary, B1 Main Committee, 345 East 47th Street, New York, NY 10017.

This Standard was approved as an ASME Standard on June 22, 1993.

iv



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ASME STANDARDS COMMITTEE B I Standardization and Unification of Screw Threads

(The following is the roster of the Committee at the time of approval of this Standard.)

OFFICERS

E. Schwartz, Chairman K. E. McCullough, Vice Chairman

C. J. Gomes Secretary

COMMITTEE PERSONNEL

J. R. Anderson R. J. Browning R. M. Byrne D. P. Cadieux F. G. Calderone F. H. Cantrell R. S. Chamerda R. Dodge P. H. Drake A. E. Ellis H. W. Ellison C. G. Erickson W. C. Farrell, Jr. R. E. Ferry, Jr. G. A. Flannery D. S. George J. Greenslade J. 0. Heinze R. R. Hyman C. W. Jatho S. P. Johnson S. I. Kanter

J. Krippes R. W. Lamport R. S. LaNier J. B. Levy J. C. McMurray D. Miskinis W. R. Newman A. Painter G. A. Russ R. J. Sabatos D. M. Satava M. M. Schuster R. H. Searr R. E. Seppey A. D. Shepherd, Jr. V. B. Shook A. G. Strang J. F. Sullivan R. L. Tennis A. F. Thibodeau A. M. Wilkerson C. J. Wilson

SUBCOMMllTEE B1 . I 5-UNJ SCREW THREADS

R. E. Seppey, Chairman F. H. Cantrell R. S. Chamerda L. N. Dixon, Jr. R. E. Ferry, Jr. G. A. Flannery D. S. George S. I. Kanter J. Krippes

K. E. McCullough W. R. Newman A. Painter G. A. Russ M. M. Schuster A. G. Strang R. L. Tennis A. M. Wilkerson C. J. Wilson

V



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CONTENTS

Foreword .............................................................................................. Standards Committee Roster .....................................................................

1 General .......................................................................................... 1 . 1 Scope ...................................................................................... 1.2 Field of Application ................................................................... 1.3 Assembly ................................................................................. 1.4 Federal Government Use ............................................................. 1.5 References ................................................................................

2 Profile of Thread ............................................................................. 2.1 Basic Profile ............................................................................. 2.2 Basic Thread Profile Symbols ...................................................... 2.3 Design Profiles .......................................................................... 2.4 Root Radius of the Thread ..........................................................

3 Series of Threads ............................................................................ 4 Thread Characteristics .....................................................................

4.1 Length of Thread Engagement. LE ............................................... 4.2 Tolerance System ....................................................................... 4.3 Limits of Size ........................................................................... 4.4 Thread Form Tolerances .............................................................

5 Dimensional Accommodation of Coatings and Platings ........................ 5.1 Coated External Threads - Class 3A ............................................ 5.2 Coating Threads with Dry Film Lubricant ...................................... 5.3 Coated External Threads - Class 2A ............................................ 5.4 Coated Internal Threads - Classes 2B and 3B ................................

6 Designation of Threads .................................................................... 6.1 Basic Designation ...................................................................... 6.2 Standard Thread Series Designation .............................................. 6.3 Designation of Coated Threads .................................................... 6.4 Designation of Threads Having Modified Crests .............................. 6.5 Designation of Threads Having Special Length Requirements ............. 6.6 Designation of Special Series Threads ............................................

7 Acceptability ..................................................................................

Figures 1 Basic Profile .................................................................................... 2 Internal UNJ Thread Design Profile and Tolerances ................................. 3 External UNJ Thread Design Profile and Tolerances ................................ 4 Root Radius of External Thread ..........................................................

... 111

V

1 1 1 1 1 1

3 3 3 3 3

7

9 9 9 9

10

45 45 45 45 45

47 47 47 47 47 47 48

49

4 4 5 5

vii



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12 13 15 16 17

32 43

51 53 55

... V111



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ASME B l - 1 . 5 95 0759b70 0565759 bTb

ASME B1.15-1995


SECTION 1 GENERAL

1.1 Scope

This Standard establishes the basic triangular profile for the UNJ thread form, provides a system of designations, lists the standard series of diameter- pitch combinations for diameters from 0.600 to 6.000 in., and specifies limiting dimensions and tolerances.

It specifies the characteristics of the UNJ inch series of threads having 0.1501 1P to 0.18042P designed radius at the root of the external thread, and also having the minor diameter of the external and internal threads increased above the ASME B1.1 UN and UNR thread forms to accommodate the external thread maximum root radius.

1.2 Field of Application

The UNJ screw thread is designed for aerospace inch threaded parts, or for use on other highly stressed applications requiring high fatigue strength. For aerospace applications, only Classes 3A and 3B should be used.

1.3 Assembly

Threads conforming to the UN profile (ASME B1.1) and the UNJ profile are not interchangeable because of possible interference between the UNJ external thread minor diameter and the UN internal thread minor diameter. However, the UNJ internal thread will assemble with the UN external thread.

1.4 Federal Government Use

When this Standard is approved by the Department of Defense and federal agencies and is incorporated into FED-STD-H28/4, Screw Thread Standards for Federal Services, Section 4, the use of this Standard by the federal government is subject to all the requirements and limitations of FED-STD-H28/4.

1.5 References

The latest issues of the following documents form a part of this Standard to the extent specified herein.

American National Standards ASME B1.1, Unified Inch Screw Threads (UN and

UNR Thread Form) ASME B1.3M, Screw Thread Gaging Systems for

ANWASME B1.7M, Nomenclature, Definitions,

ASME B1.23', Gages and Gaging for Unified Inch

Dimensional Acceptability

and Letter Symbols for Screw Threads

J Series Screw Threads ASME B1.30M, Screw Threads - Standard Prac-

tice for Calculating and Rounding Dimensions

' Proposed ASME Standard under development by The Amer- ican Society of Mechanical Engineers.

1



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~~

ASME BL.15 75 W 0757670 0565760 314


SECTION 2 PROFILE OF THREAD

2.1 Basic Profile

The basic profile is the theoretical profile corre- sponding to the basic dimensions of the thread major diameter, pitch diameter, and minor diameter. Profile applies to an axial plane. The basic profile is shown in Fig. 1.

2.2 Basic Thread Profile Symbols

The symbols used in the basic profile shown in Fig. 1 represent the following:

D bsc = basic major diameter of internal thread D2 bsc = basic pitch diameter of internal thread D, bsc = basic minor diameter of internal thread

d bsc = basic major diameter of external thread d2 bsc = basic pitch diameter of external thread d l bsc = basic minor diameter of external thread

H = height of fundamental triangle P = pitch

Appendix A provides a complete list of symbols applicable to the UNJ thread form.

2.3 Design Profiles

The design profile for the internal thread at maximum-material conditions is the same as the basic profile, except in practice, the root is cleared above the basic major diameter, D bsc. See Fig. 2.

The design profile for the external thread at maximum-material condition for Class 3A is the basic profile with a radiused minor diameter tangent to the

ASME 81.15-1995

flanks for the upper limit profile. For Class 2A, an allowance is applied to the basic profile, The external thread crest may be flat, partially or corner rounded, tangent to the 0.125P flat. See Fig. 3.

2.4 Root Radius of the Thread

2.4.1 InternalThread. For internal threads, the profile of the actual root of the thread shall at no point be below the basic profile. No root radius is specified.

2.4.2 External Thread. For external threads, the profile of the actual root of the thread shall lie within the root radius tolerance zone shown in Fig. 4. The limit dimensions of the root radius R as shown in Fig. 4 and their values are specified in Table 4. The profile shall be a continuous smoothly blended nonreversing curve, no part of which shall have a radius of less than 0.1501 1P and which is tangent to the thread flanks at not less than 0.5625H basic thread depth. The profile may comprise tangent flank circular arcs that are tangent to the flanks and a flat at the minor diameter provided that the minor diameter, d3, is within the zone established in Fig. 4.

2.4.3 Incomplete Threads. Unless otherwise specified, the runout threads on externally threaded parts shall be no less than 1, nor more than 2 pitches in length. The threads shall run-out onto the shank without any abrupt change in cross-sectional area. The root radius shall be no less than the minimum radius of the full thread section.

3



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ASME B L - L 5 95 m 0759b70 05b57bL 254

ASME 81.15-1995 UNIFIED INCH SCREW THREADS

(UNJ THREAD FORM)

FIG. 1 BASIC PROFILE

a ' l al X a'

x

E a'

FIG. 2 INTERNAL UNJ THREAD DESIGN PROFILE AND TOLERANCES

4



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GENERAL NOTE: Rounded crest is optional (See para. 5.3)

ASME B1.15-1995

FIG. 3 EXTERNAL UNJ THREAD DESIGN PROFILE AND TOLERANCES

Basic limit profde

axirnum material limit

R max. = 0 18042P

R rnm. =0.15011P

Lower hmit profile

NOTES: 11) Optional proflle cornprwng two clrcular arcs

12) Min. truncatlon (3) Max. truncatlon 14) Tangent flank radii (rnlnor d1a.1

(X) tangent to the flanks and flat at the root,

FIG. 4 ROOT RADIUS OF EXTERNAL THREAD

5



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ASME Bl.15 95 0759670 05b5763 027


SECTION 3 SERIES OF THREADS

This Standard includes a selected series of diameter-pitch combinations of threads extracted from ASME B1.l as follows: coarse pitch (UNJC), fine pitch (UNJF), extra-fine pitch (UNJEF), 8 pitch (8- UNJ), 12 pitch (12-UNJ), and 16 pitch (16-UNJ). See Table 2.

ASME 81.15-1995

7



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ASME BL.15 95 m 0759670 05b57b4 Tb3 m


SECTION 4 THREAD CHARACTERISTICS

4.1 Length of Thread Engagement, LE

Tolerances specified in Table 5 are based on a length of engagement equal to the basic major diameter for the UNJC, UNJF, and 8-UNJ series and are applicable for length of engagement up to 1.5 diameters; and a length of engagement of 9 pitches for the UN- JEF, 12-UNJ, and 16-UNJ series, and are applicable for lengths of engagement of 5 to 15 pitches.

For lengths of engagement over 1.5 (to and including 3 diameters) or over 15 (to and including 30 pitches), the pitch diameter tolerances are 1.25 times the tabulated values. For lengths of engagement over 3 diameters or 30 pitches, the pitch diameter tolerances are 1.5 times the tabulated values.

In addition to increasing pitch diameter tolerances for long lengths of engagement, maximum-material gages (GO) used for acceptance shall be equal in length to the design length of engagement.

4.2 Tolerance System

The system of tolerances and allowances is based on ASME B1.1 inch screw thread system of tolerance classes. Tolerances and allowances are applied plus for internal threads and minus for external threads.

4.3 Limits of Size

The basic profile dimensions are given in Table 1. The profile dimensions and tolerances ( T ) shown in Figs. 2 and 3 and their values for the standard series are specified in Table 5. For special threads for which there are no tabulated values, use the formulas in paras. 4.3.1 through 4.3.4, together with the tolerance table in Appendix B. Constants for the special thread formulas are given in Table 3.

NOTE: The dimensions and tolerances listed in Table 5 have been calculated and rounded to the procedures specified in ASME Bl.30. As a consequence, a few of the values listed vary from 0.0001 in. to 0.0002 in. from listed values in previously issued standards for UN and UNJ inch threads.

ASME 81.15-1995


d max. = d bsc


Td = 0.060

d2 max. = d max. - 0.6495 19P [see Table 31


Td1=0.750 ( 0 . 0 0 1 5 ~ + 0 . 0 0 1 5 m + 0 . 0 1 5 * )


d3 max. = d2 max. -0.50518P [see Table 31

d3 min. = d2 min. - 0.56580P [see Table 31


R max. =0.18042P [see Table 41

R min. = 0.1501 1P [see Table 41


D min. = D bsc

D max. = D2 max. + 0.79386P [see Table 31

D2 min. = D bsc - 0.6495 19P [see Table 31


TD2=0.975 ( 0 . 0 0 1 5 ~ + 0 . 0 0 1 5 m + 0 . 0 1 5 * )


Dl min. = D min. -0.97428P [see Table 31

NOTE: Round up to the next larger fourth place decimal, unless the fifth place is zero.

Dl max. = D , min. + TD1

Td = 0.060


NOTE: TD, may not exceed 0.259809Por be less than 0.135315P.

9



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ASME BI-L5 95 0759670 0565765 9 T T

ASME 81.15-1995


TDI = 0.120P


d max. = d bsc - es

es=0 .300 ( 0 . 0 0 1 5 ~ + 0 . 0 0 1 5 @+0.015*)



Td= 0.060.2/;;"

.d2 max. = d max. - 0.649519P [see Table 31


Td 2 = 0 . 0 0 1 5 ~ + 0 . 0 0 1 5 fi+O.OlS*

d3 max. =d2 max. -0.50518P [see Table 31

d3 min. =d2 min. - 0.56580P [see Table 31


R max. = 0.18042P [see Table 41

R min. =0.15011P [see Table 41


D min. =D bsc

D max. = D2 max. +0.79386P [see Table 31

D2 min. =D min. -0.649519P [see Table 31

Dz max. = Dz min. + TD2 TD2=1.300 ( 0 . 0 0 1 5 ~ + 0 . 0 0 1 5 @+0.015*)


Dl min. = D rnin. - 0.97428P [see Table 31

NOTE: Round up to the nearest 0.001 in. for sizes 0.138 in. and larger.

D, m a . = Dl min. + TD1


TDI=

NOTE: TD, may not exceed 0.259809P or be less than 0.135315P.


TD1= 0.120P


4.4 Thread Form Tolerances

4.4.1 Cumulative form variation is the combined effect on functional size due to individual thread form variations in lead (pitch), helix, flank angle, taper, and roundness.

When measurement is specified for Classes 3A and 3B threads, cumulative form tolerance shall be 0.5 times pitch diameter tolerance. If not specified, control shall be by the required system gages.

4.4.2 Lead and Flank Angle Variations (U) When individual inspection of lead (including

helix) and flank angle variations are required, the allowable variations for these characteristics shall be in accordance with Tables 6 and 7 unless otherwise specified.

(b) For sizes not included in Tables 6 and 7, the allowable lead variation is equal to 0.57735 times one- half the pitch diameter tolerance. This is the lead variation which causes a change in functional diameter equal to 0.5 times the pitch diameter tolerance. The allowable flank half-angle variation in minutes of arc is equal to 30 plus 1.875 times the number of threads per inch rounded to the nearest 5 minutes for 32 threads per inch and coarser, and 62 plus 0.775 times the number of threads per inch rounded to the nearest 5 minutes for threads finer than 32 threads per inch.

EXAMPLE: 0.945-8.5 UNJS-3A; lead and angle control required. No lead and angle tolerances were specified nor do default values

appear in Tables 6 and 7. Values are calculated as follows: Lead tolerance = 0.57735 X 0.5 Td, Pitch diameter tolerance Td2 = 0.0050 Lead tolerance = 0.57735 x 0.5 x 0.0050 = 0.0014 in. Angle tolerance (for coarser than 32 tpi) = 30 + (1.875 x tpi) Angle tolerance = 30+ (1.875 x 8.5)

= 45.94 minutes = 45 minutes when rounded to nearest 5 minutes

EXAMPLE: 0.500-41 UNJS-3B; lead and angle control required. Lead tolerance = 0.57735 X 0.5 Td2 Pitch diameter tolerance Td, = 0.0031 Lead tolerance = 0.57735 x 0.5 x 0.003 1 = 0.009 in. Angle tolerance (for finer than 32 tpi) = 62 + (0.775 X tpi) Angle tolerance = 62 + (0.775 x 41)

=93.78 minutes = 1 degree and 35 minutes when rounded to near-

est 5 minutes

(C) If lead and angle tolerances are specified as a pitch diameter equivalent in terms of pitch diameter tolerance, tolerances in accordance with para. 4.4.2(a) or para. 4.4.2(b) may be adjusted proportionately using 0.5 times pitch diameter tolerance as a basis.

10



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ASME B L - L 5 95 0759b70 05b57bb 836 D


EXAMPLE: 0.5000-20 UNJF-3A (22s); lead and angle control required -

0.4 PD tolerance. From Table 6 , allowable lead variation is 0.0009 in. This would

be adjusted to 0.4103 times 0.009 which is 0.0007 in. From Table 7, allowable angle variation is 1 degree 10 minutes

or 70 minutes. This would be adjusted to 0.4103 times 70 which is 56 minutes or 55 minutes when rounded.

(d) For requirements of (a) and (b) above, lead variation values tabulated or calculated are the maximum variations from specified lead between any two points not farther apart than the length of the maximum-material (GO) thread gage. Flank angle variation values are maximum variations from the basic 30 deg angle between thread flanks and perpendicu- lars to the thread axis.

ASME 81.15-1995

(e) Allowable variations in lead and flank angles are maximum values. Maximum variation in these and pitch diameter tolerance cannot be taken simul- taneously.

4.4.3 Runout of Major Diameter and Minor Di- ameter to Pitch Cylinders. When measurement is specified, maximum circular runout shall be limited to a full indicator movement equal to the pitch diameter tolerance.

4.4.4 Taper. If the pitch cylinder is conical, the difference in pitch diameters between the ends of the thread are an indication of taper. When measurement is required, it shall be specified. If not specified, allowable taper is no greater than the pitch diameter tolerance.

11



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TAB

LE 1

B

AS

IC P

RO

FILE

DIM

EN

SIO

NS

Thre

ads

Per

In

.. n

80

72

64

56

48

44

40

36

32

28

24

20

18

16

14

13

12

11

10 9 8 7 6 5 4.5

4

G

Pitc

h 1 P=

- n

0.01

2500

0.

01 38

89

0.01

562

5

0.01

7857

0.

0208

33

0.02

2727

0.02

5000

0.

0277

78

0.03

1 250

0.03

571

4

0.04

1 66

7 0.

0500

00

0.05

5556

0.

0625

00

0.07

1429

0.07

6923

0.

0833

33

0.09

0909

0.1

0000

0 0.

1111

11

0.1

2500

0

0.14

2857

0.

1 66

667

0.20

0000

0.22

2222

0.

2500

00

(3)

Pitc

h L

ine

0.5

P

0.00

6250

0.

0069

44

0.00

781

2

0.00

8928

0.

01 0

41 6

0.01

136

3

0.01

2500

0.

0138

89

0.01

5625

0.01

7857

0.

0208

33

0.02

5000

0.02

7778

0.

031

250

0.03

571

4

0.03

8461

0.

041 6

66

0.04

5454

0.05

0000

0.

0555

55

0.06

2500

0.07

1 42

8 0.

0833

33

0.1

0000

0

0.11

1111

0.

1250

00

(4)

Flat

at

Inte

rnal

rh

read

Cre

st

0.31

25 P

0.00

391

0.00

434

0.00

488

0.00

558

0.00

651

0.00

71 0

0.00

781

0.00

868

0.00

977

0.01

116

0.

01 3

02

0.01

562

0.01

736

0.

01 9

53

0.02

232

0.02

404

0.02

604

0.02

841

0.03

125

0.03

472

0.03

906

0.04

464

0.05

208

0.06

250

0.06

944

0.07

81 2

(51

Flat

at

Inte

rnal

Th

read

Roo

t an

d E

xter

nal

Thre

ad C

rest

0.

125

P

0.00

1 5

6 0.

0017

4 0.

001

95

0.00

223

0.00

260

0.00

284

0.00

312

0.00

347

0.00

391

0.00

446

0.00

521

0.00

625

0.00

694

0.00

781

0.00

893

0.00

962

0.01

042

0.

01 1

36

0.01

250

0.01

389

0.01

562

0.01

786

0.

0208

3 0.

0250

0

0.02

778

0.03

1 25

(6)

Hei

ght o

f S

harp

V

Thre

ad H

0.86

6025

P

0.01

082

5 0.

0120

28

0.01

3532

0.01

5465

0.

01 80

42

0.01

968

2

0.02

1651

0.

0240

56

0.02

7063

0.03

0929

0.

0360

84

0.04

3301

0.04

81 13

0.

0541

27

0.06

1859

0.06

6617

0.

0721

69

0.07

8730

0.08

6603

0.

0962

25

0.1 0

8253

0.12

3718

0.

1 443

38

0.17

3205

0.1 9

2450

0.

21 6

506

(71

Hei

gh

t of

Inte

rnal

Th

read

and

D

epth

of

Thre

ad

Eng

agem

ent

0.56

25 H=

0.48

7139

P

0.00

609

0.00

677

0.00

761

0.00

870

0.01

015

0.01

107

0.01

21 8

0.

01 3

53

0.01

522

0.01

740

0.

0203

0 0.

0243

6

0.02

706

0.03

045

0.03

480

0.03

747

0.04

059

0.04

429

0.04

871

0.05

413

0.06

089

0.06

959

0.08

1 19

0.

0974

3

0.1 0

825

0.12

178

(8)

4dde

ndum

of

Ext

erna

l Th

read

0.

375

H=

0.

3247

60 P

0.00

406

0.00

451

0.00

507

0.00

580

0.00

677

0.00

738

0.00

81 2

0.

0090

2 0.

01 0

1 5

0.01

160

0.

0135

3 0.

01 62

4

0.01

804

0.02

030

0.02

320

0.02

498

0.02

706

0.02

952

0.03

248

0.03

608

0.04

059

0.04

639

0.05

413

0.06

495

0.07

217

0.08

1 19

(91

Trun

catio

n o

f In

tern

al

Thre

ad C

rest

0.

3125

H=

0.27

0633

P

0.00

338

0.00

376

0.00

423

0.00

483

0.00

564

0.00

61 5

0.00

677

0.00

752

0.00

846

0.00

967

0.01

128

0.

01 35

3

0.01

504

0.

01 69

1 0.

01 93

3

0.02

082

0.02

255

0.02

460

0.02

706

0.03

007

0.03

383

0.03

866

0.04

5 10

0.

0541

3

0.06

014

0.06

766

(1 0)

rrun

catio

n o

f In

tern

al

Thre

ad R

oot

and

Ext

erna

l Th

read

Cre

st

0.12

5 H=

0.10

8253

P

0.00

1 35

0.00

1 50

0.00

1 69

0.00

1 93

0.00

226

0.00

246

0.00

271

0.00

301

0.00

338

0.00

387

0.00

451

0.00

541

0.00

601

0.00

677

0.00

773

0.00

833

0.00

902

0.00

984

0.01

083

0.01

203

0.01

353

0.01

546

0.

01 8

04

0.02

1 6

5

0.02

406

0.02

706

(11)

Hal

f id

den

du

m o

f E

xter

nal

Thre

ad.

RE

FER

EN

CE

O

NLY

0.16

238

P

0.00

203

0.00

226

0.00

254

0.00

290

0.00

338

0.00

369

0.00

406

0.00

451

0.00

507

0.00

580

0.00

677

0.00

8 12

0.00

902

0.01

015

0.01

160

0.01

249

0.01

353

0.01

476

0.01

624

0.01

804

0.02

030

0.02

320

0.02

706

0.03

248

0.03

608

0.04

059

0.18

75 H=

0 2'

9

a- 4

0

0

Ln

a-

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J

a-

C

J

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Pro

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ith A

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-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

UNIFIED INCH SCREW THREADS (UNJ THREAD FORM) ASME B1.15-1995

TABLE 2 THREAD SERIES (1 1 (8) (7) (6) (51 (4) (3) (2)

Nominal Sizes, in. Number of Threads per in.

Primary

0.0600

0.0860

0.1120 0.1250 0.1380 0.1640 0.1900

0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250

0.7500

0.8750

1 .oooo

1.1 250

1.2500

1.3750

1.5000

1.6250

1.7500

1.8750

2.0000

2.2500

2.5000

2.7500

3.0000

3.2500

I I Series With lncreasinn Pi L- Secondary

0.0730

0.0990

0.21 60

0.6875

0.81 25

0.9375

1.0625

1.1 875

1.31 25

1.4375

1.5625

1.6875

1.81 25

1.9375

2.1 250

2.3750

2.6250

2.8750

3.1 250

I 3.3750 I

Coarse Pitch UNJC

64 56 48 40 40 32 32 24 24 20 18 16 14 13 12 11

10

9

8

7

7

6

6

-

-

-

-

-

-

-

-

- - - 5 - - - 4.5 - 4.5 - 4

4 -

- 4

4 -

-

Fine Pitch UNJF

80 72 64 56 48 44 40 36 32 28 28 24 24 20 20 18 18

16 -

- 14

12

12

12

-

-

-

- 12

12 -

- - - - - - - - - - - - - - - - - - -

itches

Extra Fine Pitch i

UNJEF ’ - - - - - - - - - 32 32 32 32 28 28 24 24 24 20 20 20 20 20 18 18 18 18 18 18 18 18 18 18 18 - - - - - - - - - - - - - - - -

12-UNJ - - - - - - - - - - - - - - -

UNJC 12 12 12 12 12 12

UNJF 12

UNJF 12

UNJF 12

UNJF 12

UNJF 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12

Constant (Uniform) Pitch Series 1

”

-

16-UNJ - - - - - - - - - - -

UNJC 16 16 16 16 16

UNJF 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16. 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16

-

(Table 2 continues on next page)

13



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

ASME 61.15-1995

(1 1 Nominal Sizes,

(2)

in.

Prirnaw 1 Secondary

3.5000

3.7500

4.0000

4.2500

4.5000

4.7500

5.0000

5.2500

5.5000

5.7500

6.0000

3.6250

3.8750

4.1250

4.3750

4.6250

4.8750

5.1250

5.3750

5.6250

5.8750


TABLE 2 THREAD SERIES (CONT'D)

(3) (8) 17) (61 (5) (4)

Number of T

Series With Increasing Pitches

Extra Fine

UNJEF Fine Pitch Pitch

- I - - -

I

eads per in.

12-UNJ

12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12

ch Series

16-UNJ

16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16

14



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---


TABLE 3 CONSTANTS FOR CALCULATION FORMULAS OF THREAD PROFILE DIMENSIONS, in.

No. of Threads Per in., n

80 72 64

56 48 44

40 36 32

28 24 20

18 16 I4

13 12 1 1

10 9 8

7 6 5

4.5 4

Pitch 1 p= - n

0.01 2500 0.01 3889 0.01 5625

0.017857 0.020833 0.022727

0.025000 0.027778 0.031250

0.03571 4 0.041 667 0.050000

0.055556 0.062500 0.071429

0.076923 0.083333 0.090909

0.1 00000 0.111111 0.125000

0.142857 0.166667 0.200000

0.222222 0.250000

'wice External Thread

Addendum 0.7500H= 0.649519P

0.0081 19 0.009021 0.01 01 49

0.01 1599 0.013532 0.014762

0.016238 0.01 8042 0.020297

0.023197 0.027063 0.032476

0.036084 0.040595 0.046394

0.049963 0.0541 27 0.059047

0.064952 0.0721 69 0.081 190

0.092788 0.108253 0.1 29904

0.1 44338 0.1 62380

Difference 3etween Max. Pitch Dia. and Max. Minor Dia. of Ext.

Thread 0.58333H= 0.5051 81 P

0.00631 0.00702 0.00789

0.00902 0.01 052 0.01 148

0.01263 0.01 403 0.01 579

0.01804 0.02105 0.02526

0.02807 0.031 57 0.03608

0.03886 0.0421 0 0.04593

0.05052 0.05613 0.0631 5

0.0721 7 0.08420 0.10104

0.1 1226 0.1 2630

Difference Between Min. Pitch Dia. and

Min. Minor Dia. of Ext.

Thread 0.65336H= 0.565805P

0.00707 0.00786 0.00884

0.01010 0.01 179 0.01286

0.01 41 4 0.01 572 0.01 768

0.02021 0.02358 0.02829

0.03143 0.03536 0.04041

0.04352 0.0471 5 0.051 44

0.05658 0.06287 0.07072

0.08083 0.09430 0.11316

0.1 2573 0.1 41 45

Difference 3etween Max. dajor Dia. and Aax. Pitch Dia of Int. Thread 0.91 667H = 0.793857P

0.00992 0.01 103 0.01 240

0.01 41 8 0.01 654 0.01 804

0.01985 0.02205 0.02481

0.02835 0.03308 0.03969

0.0441 0 0.04962 0.05670

0.06107 0.0661 5 0.072 I7

0.07939 0.08821 0.09923

0.1 1341 0.13231 0.1 5877

0.17641 0.1 9846

louble Height of Internal

Thread 1.1 25H =

0.974279P

0.01218 0.01353 0.01522

0.01740 0.02030 0.02214

0.02436 0.02706 0.03045

0.03480 0.04060 0.04871

0.0541 3 0.06089 0.06959

0.07494 0.081 19 0.08857

0.09743 0.1 0825 0.12178

0.13918 0.1 6238 0.1 9486

0.21651 0.24357

Height of External Thread

0.66667H= 0.577350P

0.00722 0.00802 0.00902

0.01031 0.01203 0.01312

0.01443 0.01 604 0.01 804

0.02062 0.02406 0.02887

0.03208 0.03608 0.041 24

0,04441 0.0481 1 0.05249

0.05774 0.0641 5 0.07217

0.08248 0.09623 0.1 1547

0.12830 0.14434

15



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

ASME 61.15-1995 UNIFIED INCH SCREW THREADS

(UNJ THREAD FORM)

TABLE 4 LIMIT VALUES, EXTERNAL THREAD ROOT RADIUS R, in.

(1 1

No. of Threads per in.

80 72 64

56 48 44

40 36 32

28 24 20

18 16 14

13 12 11

10 9 8

7 6 5

4.5 4

NOTE: (1) R min.=O.l5011P

R ma. = 0.1 8042P

(2) Pitch

1 P=- n

0.012500 0.013889 0.01 5625

0.01 7857 0.020833 0.022727

0.025000 0.027778 0.031 250

0.03571 4 0.041 667 0.050000

0.055556 0.062500 0.071 429

0.076923 0.083333 0.090909

0.100000 0.111111 0.1 25000

0.1 42857 0.1 66667 0.200000

0.222222 0.250000

(31 I 14)

R [Nc

Min.

0.001 9 0.0021 0.0023

0.0027 0.0031 0.0034

0.0038 0.0042 0.0047

0.0054 0.0063 0.0075

0.0083 0.0094 0.01 07

0.01 15 0.0125 0.01 36

0.01 50 0.01 67 0.01 88

0.021 4 0.0250 0.0300

0.0334 0.0375

! (111 Max.

0.0023 0.0025 0.0028

0.0032 0.0038 0.0041

0.0045 0.0050 0.0056

0.0064 0.0075 0.0090

0.01 00 0.01 13 0.01 29

0.01 39 0.01 50 0.01 64

0.01 80 0.0200 0.0226

0.0258 0.0301 0.0361

0.0401 0.0451

16



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

L

IMIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES

, UN

J TH

RE

AD

FO

RM

-

Cla

ss T

T

F In

tern

al T

hrea

ds

Ext

erna

l Thr

eads

7 1

t T

T M

ajor

D

iam

eter

P

itch

Dia

met

er

Min

or

Dia

met

er

Roo

t R

adiu

s M

ino

r D

iam

eter

P

itch

Dia

met

er

Maj

or

Dia

.

Min

.

17

0.06

00

0.06

00

0.07

30

0.07

30

0.07

30

0.07

30

0.08

60

0.08

60

0.08

60

0.08

60

0.09

90

0.09

90

0.09

90

0.09

90

0.1

120

0.1

120

0.1

120

0.1 1

20

0.1 2

50

0.1 2

50

0.1 2

50

0.1 2

50

0.13

80

0.13

80

0.13

80

0.13

80

0.16

40

0.16

40

0.16

40

0.16

40

Ser

ies

Des

igna

- ti

on

2

UN

JF

UN

JC

UN

JF

UN

JC

UN

JF

UN

JC

UN

JF

UN

JC

UN

JF

UN

JC

UN

JF

UN

JC

UN

JF

UN

JC

UN

JF

Nom

inal

Siz

e an

d Th

read

s pe

r in

.

1

0.06

00-8

0

0.07

30-6

4

0.07

30-7

2

0.08

60-5

6

0.08

60-6

4

0.09

90-4

8

5

0.09

90-5

6

0.1

120-

40

0.1 1

20-4

8

0.12

50-4

0

0.12

50-4

4

0.1 3

80-3

2

0.1 3

80-4

0

0.1 6

40-3

2

0.1 6

40-3

6

Cla

ss

Min

.

11

0.00

19

0.00

19

0.00

23

0.00

23

0.00

21

0.00

21

0.00

27

0.00

27

0.00

23

0.00

23

0.00

31

0.00

31

0.00

27

0.00

27

0.00

38

0.00

38

0.00

31

0.00

31

0.00

38

0.00

38

0.00

34

0.00

34

0.00

47

0.00

47

0.00

38

0.00

38

0.00

47

0.00

47

0.00

42

0.00

42

Max

.

13

0.05

1 1

0.05

1 1

0.06

1 9

0.

061

9

0.06

31

0.06

31

0.07

32

0.07

32

0.07

49

0.07

49

0.08

41

0.08

41

0.08

62

0.08

62

0.09

42

0.09

42

0.09

71

0.09

71

0.1

072

0.

1 0

72

0.1 0

88

0.1

088

0.1 1

57

0.1 1

57

0.12

02

0.12

02

0.14

17

0.14

17

0.14

42

0.14

42

Min

.

14

0.04

79

0.04

79

0.05

78

0.05

78

0.05

95

0.05

95

0.06

86

0.06

86

0.07

08

0.07

08

0.07

87

0.07

87

0.08

16

0.08

16

0.08

77

0.08

77

0.09

1 7

0.09

17

0.10

07

0.10

07

0.10

29

0.1 0

29

0.1

076

0.1

076

0.1

137

0.1

137

0.13

36

0.13

36

0.1 3

70

0.1 3

70

Max

.

15

0.05

42

0.05

36

0.06

55

0.06

48

0.06

65

0.06

59

0.07

72

0.07

65

0.07

86

0.07

79

0.08

85

0.08

77

0.09

02

0.08

95

0.09

91

0.09

82

0.10

16

0.1 0

08

0.1 1

21

0.11

13

0.1

134

0.1

126

0.12

14

0.1

204

0.12

52

0.1 2

43

0.14

75

0.14

65

0.14

96

0.14

87

Min

.

16

0.05

1 9

0.

051

9

0.06

29

0.06

29

0.06

40

0.06

40

0.07

44

0.07

44

0.07

59

0.07

59

0.08

55

0.08

55

0.08

74

0.08

74

0.09

58

0.09

58

0.09

85

0.09

85

0.1 0

88

0.1 0

88

0.1 1

02

0.1 1

02

0.11

77

0.11

77

0.12

18

0.12

18

0.14

37

0.14

37

0.1

460

0.1

460

Min

.

9

0.04

25

0.04

35

0.05

1 5

0.

0526

0.05

36

0.05

47

0.06

1 6

0.06

27

0.06

45

0.06

56

0.07

07

0.07

20

0.07

44

0.07

57

0.07

84

0.07

98

0.08

36

0.08

49

0.09

13

0.09

28

0.09

41

0.09

54

0.09

64

0.09

79

0.1

043

0.

1 0

57

0.1

222

0.

1 238

0.1

267

0.

1282

Max

.

10

0.00

23

0.00

23

0.00

28

0.00

28

0.00

25

0.00

25

0.00

32

0.00

32

0.00

28

0.00

28

0.00

38

0.00

38

0.00

32

0.00

32

0.00

45

0.00

45

0.00

38

0.00

38

0.00

45

0.00

45

0.00

41

0.00

41

0.00

56

0.00

56

0.00

45

0.00

45

0.00

56

0.00

56

0.00

50

0.00

50

Max

.

4

0.05

95

0.06

00

0.07

24

0.07

30

0.07

24

0.07

30

0.08

54

0.08

60

0.08

54

0.08

60

0.09

83

0.09

90

0.09

83

0.09

90

0.11

12

0.1 1

20

0.11

13

0.1

120

0.1

242

0.12

50

0.12

43

0.12

50

0.1

372

0.1

380

0.1 3

72

0.13

80

0.1

631

0.1 6

40

0.1 6

32

0.1 6

40

Min

.

5

0.05

63

0.05

68

0.06

86

0.06

92

0.06

89

0.06

95

0.08

13

0.08

1 9

0.08

16

0.08

22

0.09

38

0.09

45

0.09

42

0.09

49

0.10

61

0.1 0

69

0.10

68

0.10

75

0.1

191

0.1

199

0.1

195

0.12

02

0.13

12

0.13

20

0.13

21

0.1

329

0.15

71

0.1 5

80

0.1 5

77

0.1 5

85

Max

.

6

0.05

14

0.05

19

0.06

23

0.06

29

0.06

34

0.06

40

0.07

38

0.07

44

0.07

53

0.07

59

0.08

48

0.08

55

0.08

67

0.08

74

0.09

50

0.09

58

0.09

78

0.09

85

0.1

080

0.1 0

88

0.1 0

95

0.1

102

0.1

169

0.1

177

0.1 2

10

0.1

218

0.1 4

28

0.1

437

0.1

452

0.

1 460

Min

.

7

0.04

96

0.05

06

0.06

03

0.06

14

0.06

1 5

0.06

26

0.07

1 7

0.

0728

0.07

33

0.07

44

0.08

25

0.08

38

0.08

45

0.08

58

0.09

25

0.09

39

0.09

54

0.09

67

0.1 0

54

0.1

069

0.1 0

70

0.1 0

83

0.1 1

41

0.1

156

0.1 1

84

0.1 1

98

0.13

99

0.14

15

0.14

24

0.14

39

Max

.

8

0.04

51

0.04

56

0.05

44

0.05

50

0.05

64

0.05

70

0.06

48

0.06

54

0.06

74

0.06

80

0.07

43

0.07

50

0.07

77

0.07

84

0.08

24

0.08

32

0.08

73

0.08

80

0.09

54

0.09

62

0.09

80

0.09

87

0.10

11

0.10

19

0.1 0

84

0.1

092

0.1

270

0.1

279

0.13

12

0.1 3

20

3 2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

-

12

28

3B

28

3B

28

3B

28

38

28

38

2B

38

28

3

8

28

3

8

28

38

28

38

28

38

28

38

28

38

28

38

28

3B -

0

J

Ln 9

a- J 0

0

Ln

0-

Ln 4

4

N

0

W

-3 I

(Tab

le 5

con

tinue

s on

nex

t pag

e)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

LI

MIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES

, UN

J TH

RE

AD

FO

RM

(CO

NT'

D)

r F

r E

xter

nal T

hrea

ds

Inte

rnal

Thr

eads

t r

r M

ajor

P

itch

Dia

met

er

Min

or

Dia

met

er

Roo

t R

adiu

s M

inor

D

iam

eter

P

itch

Dia

met

er

Maj

or

Dia

.

Min

.

17

0.1 9

00

0.1 9

00

0.1 9

00

0.1 9

00

0.21

60

0.21

60

0.21

60

0.21

60

0.21

60

0.21

60

0.25

00

0.25

00

0.25

00

0.25

00

0.25

00

0.25

00

0.31

25

0.31

25

0.31

25

0.31

25

0.31

25

0.31

25

0.37

50

0.37

50

0.37

50

0.37

50

0.37

50

0.37

50

0.43

75

0.43

75

Ser

ies

Des

igna

- ti

on

2

UN

JC

UN

JF

UN

JC

UN

JF

UN

JEF

UN

JC

UN

JF

UN

JEF

UN

JC

UN

JF

UN

JEF

UN

JC

UN

JF

UN

JEF

UN

JC

Nom

inal

Siz

e an

d T

hrea

ds

per

in.

1

0.1 9

00-2

4

0.1 9

00-3

2

0.21

60-

24

0.21

60-2

8

0.21

60-

32

0.25

00-2

0

0.25

00-2

8

0.25

00-3

2

0.31

25-1

8

0.31

25-

24

0.31

25-

32

0.37

50-1

6

0.37

50-2

4

0.37

50-3

2

0.43

75-1

4

Dia

l

Max

.

4

0.1

890

0.1

900

0.18

91

0.1

900

0.21

50

0.21

60

0.21

50

0.21

60

0.21

51

0.21

60

0.24

89

0.25

00

0.24

90

0.25

00

0.24

90

0.25

00

0.31

13

0.31

25

0.31

14

0.31

25

0.31

15

0.31

25

0.37

37

0.37

50

0.37

39

0.37

50

0.37

40

0.37

50

0.43

61

0.43

75

ter Min

.

5

0.18

18

0.1

828

0.18

31

0.1

840

0.20

78

0.20

88

0.20

85

0.20

95

0.20

91

0.21

00

0.24

08

0.24

19

0.24

25

0.24

35

0.24

30

0.24

40

0.30

26

0.30

38

0.30

42

0.30

53

0.30

55

0.30

65

0.36

43

0.36

56

0.36

67

0.36

78

0.36

80

0.36

90

0.42

58

0.42

72

Cla

ss

Cla

ss

Max

.

15

0.16

72

0.16

61

0.1 7

36

0.17

26

0.1 9

33

0.1

922

0.1 9

70

0.1 9

59

0.19

98

0.1 9

88

0.22

24

0.22

1 1

0.23

1 1

0.

2300

0.23

39

0.23

28

0.28

1 7

0.

2803

0.29

02

0.28

90

0.29

64

0.29

53

0.34

01

0.33

87

0.35

28

0.35

1 6

0.35

91

0.35

80

0.39

72

0.39

57

Min

.

16

0.1 6

29

0.1 6

29

0.1 6

97

0.16

97

0.1 8

89

0.1 8

89

0.1 9

28

0.1 9

28

0.1 9

57

0.1 9

57

0.21

75

0.21

75

0.22

68

0.22

68

0.22

97

0.22

97

0.27

64

0.27

64

0.28

54

0.28

54

0.29

22

0.29

22

0.33

44

0.33

44

0.34

79

0.34

79

0.35

47

0.35

47

0.39

1 1

0.

391

1

Min

.

14

0.14

94

0.14

94

0.1 5

96

0.1 5

96

0.17

54

0.17

54

0.18

12

0.18

12

0.1 8

56

0.1 8

56

0.20

13

0.20

13

0.21

52

0.21

52

0.2

196

0.2

196

0.25

84

0.25

84

0.27

1 9

0.

2719

0.28

21

0.28

21

0.31

41

0.

31 4

1

0.33

44

0.33

44

0.34

46

0.34

46

0.36

80

0.36

80

Min

.

11

0.00

63

0.00

63

0.00

47

0.00

47

0.00

63

0.00

63

0.00

54

0.00

54

0.00

47

0.00

47

0.00

75

0.00

75

0.00

54

0.00

54

0.00

47

0.00

47

0.00

83

0.00

83

0.00

63

0.00

63

0.00

47

0.00

47

0.00

94

0.00

94

0.00

63

0.00

63

0.00

47

0.00

47

0.01

07

0.01

07

Max

.

13

0.1 6

00

0.1 6

00

0.1 6

75

0.16

75

0.1

852

0.

1 8

52

0.1

896

0.1

896

0.19

29

0.19

29

0.21

21

0.21

21

0.22

29

0.22

29

0.22

63

0.22

63

0.26

90

0.26

90

0.27

99

0.27

99

0.28

81

0.28

81

0.32

50

0.32

50

0.34

1 7

0.

341

7

0.35

01

0.35

01

0.37

95

0.37

95

Min

.

9

0.1

350

0.1 3

68

0.14

81

0.14

97

0.1

609

0.1

627

0.16

84

0.17

02

0.17

40

0.17

56

0.1 8

44

0.1 8

64

0.20

23

0.20

41

0.20

78

0.20

96

0.23

98

0.24

20

0.25

70

0.25

91

0.27

03

0.27

21

0.29

33

0.29

57

0.31

94

0.32

1 4

0.33

26

0.33

45

0.34

46

0.34

72

Max

.

10

0.00

75

0.00

75

0.00

56

0.00

56

0.00

75

0.00

75

0.00

64

0.00

64

0.00

56

0.00

56

0.00

90

0.00

90

0.00

64

0.00

64

0.00

56

0.00

56

0.01

00

0.01

00

0.00

75

0.00

75

0.00

56

0.00

56

0.01

13

0.01

13

0.00

75

0.00

75

0.00

56

0.00

56

0.01

29

0.01

29

Max

.

8

0.14

09

0.14

18

0.15

30

0.15

39

0.16

69

0.16

78

0.17

38

0.17

48

0.17

90

0.17

99

0.19

11

0.1

922

0.20

78

0.20

88

0.21

29

0.21

39

0.24

71

0.24

83

0.26

32

0.26

44

0.27

54

0.27

64

0.30

1 5

0.

3028

0.32

58

0.32

68

0.33

79

0.33

89

0.35

36

0.35

50

Max

.

6

0.16

19

0.1

629

0.1

688

0.1

697

0.1

879

0.1

889

0.19

18

0.1 9

28

0.19

48

0.19

57

0.21

64

0.21

75

0.22

58

0.22

68

0.22

87

0.22

97

0.27

52

0.27

64

0.28

43

0.28

54

0.29

1 2

0.

2922

0.33

31

0.33

44

0.34

68

0.34

79

0.35

37

0.35

47

0.38

97

0.39

1 1

Min

.

7

0.1 5

86

0.16

04

0.1

658

0.

1 674

0.18

45

0.18

63

0.1

886

0.1

904

0.19

17

0.19

33

0.21

27

0.2

147

0.22

25

0.22

43

0.22

55

0.22

73

0.27

1 2

0.

2734

0.28

06

0.28

27

0.28

80

0.28

98

0.32

87

0.33

1 1

0.34

30

0.34

50

0.35

03

0.35

22

0.38

50

0.38

76

12

28

38

28

3

8

28

3

8

28

3B

28

3B

2B

3B

2B

38

28

38

28

3B

2B

38

28

3

8

28

3

8

28

3B

28

38

28

38

-

3 2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A -

(Tab

le 5

con

tinue

s o

n ne

xt p

age)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

L

IMIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES

, U

NJ

THR

EA

D F

OR

M (C

ON

T'D

)

T

T

Thre

ads

5 In

tern

al T

hrea

ds

Ext

erns

Pitc

h D

iam

eter

T

Maj

or

Dia

met

er

T T

Min

or

Dia

met

er

Roo

t R

adiu

s M

inor

D

iam

eter

P

itch

Dia

met

er

Maj

or

Dia

.

Min

.

17

0.43

75

0.43

75

0.43

75

0.43

75

0.43

75

0.43

75

0.50

00

0.50

00

0.50

00

0.50

00

0.50

00

0.50

00

0.50

00

0.50

00

0.56

25

0.56

25

0.56

25

0.56

25

0.56

25

0.56

25

0.56

25

0.56

25

0.62

50

0.62

50

0.62

50

0.62

50

0.62

50

0.62

50

0.62

50

0.62

50

Nom

inal

Siz

e an

d Th

read

s pe

r in

.

1

0.43

75-1

6

0.43

75-2

0

0.43

75-2

8

0.50

00-1

3

0.50

00-1

6

0.50

00-2

0

I 0.

5000

-28

0.56

25-1

2

0.56

25-1

6

0.56

25-1

8

0.56

25-2

4

0.62

50-1

1

0.62

50-1

2

0.62

50-1

6

0.62

50-1

8

Ser

ies

Des

igna

. ti

on

2

UN

J

UN

JF

UN

JEF

UN

JC

UN

J

UN

JF

UN

JEF

UN

JC

UN

J

UN

JF

UN

JEF

UN

JC

UN

J

UN

J

UN

JF

~~

Min

.

16

0.39

69

0.39

69

0.40

50

0.40

50

0.41

43

0.41

43

0.45

00

0.45

00

0.45

94

0.45

94

0.46

75

0.46

75

0.47

68

0.47

68

0.50

84

0.50

84

0.52

1 9

0.

521

9

0.52

64

0.52

64

0.53

54

0.53

54

0.56

60

0.56

60

0.57

09

0.57

09

0.58

44

0.5

84

0.58

89

0.58

89

f C

lass

C

lass

12

28

38

28

38

28

38

28

38

28

38

28

3B

2B

38

28

3

8

28

38

2B

38

28

3

8

28

3

8

28

38

2B

38

2B

38

-

__

_

Max

.

4

0.43

61

0.43

75

0.43

62

0.43

75

0.43

64

0.43

75

0.49

85

0.50

00

0.49

86

0.50

00

0.49

87

0.50

00

0.49

89

0.50

00

0.56

09

0.56

25

0.56

1 1

0.

5625

0.56

1 1

0.56

25

0.56

13

0.56

25

0.62

33

0.62

50

0.62

34

0.62

50

0.62

36

0.62

50

3.62

36

3.62

50

Min

.

5

0.42

67

0.42

81

0.42

81

0.42

94

0.42

99

0.43

1 0

0.48

76

0.48

91

0.48

92

0.49

06

0.49

06

0.49

1 9

0.49

24

0.49

35

0.54

95

0.55

1 1

0.55

17

0.55

31

0.55

24

0.55

38

0.55

41

0.55

53

0.61

12

0.61

29

0.61

20

0.61

36

0.61

42

0.61

56

0.61

49

0.

61 6

3 ,

Max

.

6

0.39

55

0.39

69

0.40

37

0.40

50

0.41

32

0.41

43

0.44

85

0.45

00

0.45

80

0.45

94

0.46

62

0.46

75

0.47

57

0.47

68

0.50

68

0.50

84

0.52

05

0.52

19

0.52

50

0.52

64

0.53

42

0.53

54

0.56

43

0.56

60

0.56

93

0.57

09

0.58

30

0.58

44

3.58

75

3.58

89

Min

.

7

0.39

09

0.39

35

0.39

95

0.40

1 9

0.40

96

0.41

16

0.44

35

0.44

63

0.45

33

0.45

59

0.46

1 9

0.46

43

0.47

20

0.47

40

0.50

16

0.50

45

0.51

58

0.51

84

0.52

05

0.52

30

0.53

03

0.53

25

0.55

88

0.56

19

0.56

39

0.56

68

0.57

82

0.58

08

0.58

28

0.58

54

Max

.

8

0.36

39

0.36

53

0.37

84

0.37

97

0.39

52

0.39

63

0.40

96

0.41

1 1

0.42

64

0.42

78

0.44

09

0.44

22

0.45

77

0.45

88

0.46

47

0.46

63

0.48

89

0.49

03

0.49

69

0.49

83

0.51

31

0.51

43

0.51

84

0.52

01

0.52

72

0.52

88

0.55

14

0.55

28

0.55

94

0.56

08

Min

.

9

0.35

55

0.35

81

0.37

1 2

0.37

36

0.38

94

0.39

1 4

0.40

00

0.40

28

0.41

79

0.42

05

0.43

36

0.43

60

0.45

1 8

0.

4528

0.45

45

0.45

74

0.48

04

0.48

30

0.48

91

0.49

1 6

0.50

67

0.50

89

0.50

74

0.51

05

0.51

67

0.51

96

0.54

28

0.54

54

0.55

1 4

0.

5540

Max

.

10

0.01

13

0.01

13

0.00

90

0.00

90

0.00

64

0.00

64

0.01

39

0.01

39

0.01

13

0.01

13

0.00

90

0.00

90

0.00

64

0.00

64

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.00

75

0.00

75

0.01

64

0.01

64

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

Min

.

11

0.00

94

0.00

94

0.00

75

0.00

75

0.00

54

0.00

54

0.01

15

0.01

15

0.00

94

0.00

94

0.00

75

0.00

75

0.00

54

0.00

54

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83

0.00

63

0.00

63

0.01

36

0.01

36

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83

Max

.

13

0.38

68

0.38

68

0.39

70

0.39

70

0.40

86

0.40

86

0.43

68

0.43

68

0.44

88

0.44

88

0.45

91

0.45

91

0.47

08

0.47

08

0.49

14

0.49

1 4

0.51

09

0.51

09

0.51

66

0.51

66

0.52

81

0.52

81

0.54

74

0.54

74

0.55

39

0.55

39

0.57

31

3.57

31

3.57

88

3.57

88

Min

.

14

0.37

66

0.37

66

0.38

88

0.38

88

0.40

27

0.40

27

0.42

51

0.42

51

0.43

92

0.43

92

0.45

1 3

0.

4513

0.46

52

0.46

52

0.48

1 4

0.48

1 4

0.50

1 7

0.

501

7

0.50

84

0.50

84

0.52

19

0.52

19

0.53

65

0.53

65

0.54

39

0.54

39

0.56

42

0.56

42

0.57

09

0.57

09

Max

.

15

0.40

28

0.40

1 4

0.41

04

0.40

91

0.41

89

0.41

78

0.45

65

0.45

48

0.46

55

0.46

40

0.47

31

0.47

17

0.48

1 6

0.

4804

0.51

52

0.51

35

0.52

80

0.52

65

0.53

23

0.53

08

0.54

05

0.53

92

0.57

32

0.57

1 4

0.57

80

0.57

62

0.59

06

0.58

90

0.59

49

0.59

34

3 2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

-

T 0

V)

D

m

I+

1 L

(Tab

le 5

con

tinue

s on

nex

t pag

e)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

LI

MIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES

, UN

J TH

RE

AD

FO

RM

(CO

NT'

D)

> r a rn

T

Inte

rnal

Thr

eads

'h

read

s Min

or

Dia

met

er

"---

E

T

Maj

or

Dia

.

Min

. -

W

(D

VI

A

Ext

erna

Pitc

h D

iam

eter

t

1 r

I I

Min

or

Dia

met

er

Pitc

h D

iam

eter

M

ajo

r D

iam

eter

R

oot

Rad

ius

Ser

ies

Des

igna

- ti

on

2

UN

JEF

UN

J

UN

J

UN

JEF

UN

JC

UN

J

UN

JF

UN

JEF

UN

J

UN

J

UN

JEF

UN

JC

UN

J

UN

JF

UN

J

No

min

al S

ize

and

Thr

eads

pe

r in

.

1

0.62

50-2

4

0.68

75-1

2

0.68

75-1

6

0.68

75-2

4

0.75

00-1

0

0.75

00-1

2

h) 0

0.75

00-1

6

0.75

00-2

0

0.81

25-1

2

0.81

25-1

6

0.81

25-2

0

0.87

50-9

0.87

50-1

2

0.87

50-1

4

0.87

50-1

6

Cla

ss

Min

.

14

0.58

44

0.58

44

0.60

64

0.60

64

0.62

67

0.62

67

0.64

69

0.64

69

0.65

26

0.65

26

0.66

89

0.66

89

0.68

92

0.68

92

0.70

1 3

0.

7013

0.73

1 4

0.73

1 4

0.75

17

0.75

17

0.76

38

0.76

38

0.76

68

0.76

68

0.79

39

0.79

39

0.80

55

0.80

55

0.81

42

0.81

42

Max

.

15

0.60

31

0.60

1 8

0.64

05

0.63

87

0.65

31

0.65

1 5

0.66

56

0.66

43

0.69

27

0.69

07

0.70

31

0.70

1 3

0.7

159

0.71

43

0.72

32

0.72

18

0.76

56

0.76

38

0.77

82

0.77

66

0.78

57

0.78

43

0.81

10

0.80

89

0.82

81

0.82

63

0.83

56

0.83

39

0.84

07

0.83

91

Min

.

16

0.59

79

0.59

79

0.63

34

0.63

34

0.64

69

0.64

69

0.66

04

0.66

04

0.68

50

0.68

50

0.69

59

0.69

59

0.70

94

0.70

94

0.71

75

0.71

75

0.75

84

0.75

84

0.77

19

0.77

19

0.78

00

0.78

00

0.80

28

0.80

28

0.82

09

0.82

09

0.82

86

0.82

86

0.83

44

0.83

44

Max

.

10

0.00

75

0.00

75

0.01

50

0.01

50

0.01

13

0.01

13

0.00

75

0.00

75

0.01

80

0.01

80

0.01

50

0.01

50

0.01

13

0.01

13

0.00

90

0.00

90

0.01

50

0.01

50

0.01

13

0.01

13

0.00

90

0.00

90

0.02

00

0.02

00

0.01

50

0.01

50

0.01

29

0.01

29

0.01

13

0.01

13

Min

.

11

0.00

63

0.00

63

0.01

25

0.01

25

0.00

94

0.00

94

0.00

63

0.00

63

0.01

50

0.01

50

0.01

25

0.01

25

0.00

94

0.00

94

0.00

75

0.00

75

0.01

25

0.01

25

0.00

94

0.00

94

0.00

75

0.00

75

0.01

67

0.01

67

0.01

25

0.01

25

0.01

07

0.

01 0

7

0.00

94

0.00

94

Max

.

13

0.59

04

0.59

04

0.61

64

0.61

64

0.63

53

0.63

53

0.65

27

0.65

27

0.66

46

0.66

46

0.67

89

0.67

89

0.69

77

0.69

77

0.70

81

0.70

81

0.74

1 4

0.

7414

0.76

02

0.76

02

0.77

06

0.77

06

0.78

01

0.78

01

0.80

39

0.80

39

0.81

52

0.81

52

0.82

27

0.82

27

Max

.

a 0.

5756

0.

5768

0.58

97

0.59

13

0.61

39

0.61

53

0.63

81

0.63

93

0.63

27

0.63

45

0.65

21

0.65

38

0.67

63

0.67

78

0.69

09

0.69

22

0.71

46

0.7

163

0.73

88

0.74

03

0.75

34

0.75

47

0.74

48

0.74

67

0.77

71

0.77

88

0.79

09

0.79

25

0.80

1 3

0.

8028

Min

.

9

0.56

91

0.57

1 3

0.57

92

0.58

22

0.60

53

0.60

79

0.63

16

0.63

38

0.62

07

0.62

40

0.64

16

0.64

46

0.66

75

0.67

02

0.68

35

0.68

59

0.70

40

0.70

72

0.73

01

0.73

29

0.74

60

0.74

84

0.73

17

0.73

52

0.76

66

0.76

96

0.78

12

0.78

41

0.79

26

0.79

54

Min

.

5

0.61

66

0.61

78

0.67

45

0.67

61

0.67

67

0.67

81

0.67

91

0.68

03

0.73

53

0.73

71

0.73

69

0.73

86

0.73

91

0.74

06

0.74

06

0.74

19

0.79

94

0.80

1 1

0.80

1 6

0.

8031

0.80

31

0.80

44

0.85

92

0.86

1 1

0.86

1 9

0.

8636

0.86

31

0.86

47

0.86

41

0.86

56

Max

.

6

0.59

67

0.59

79

0.63

1 a

0.63

34

0.64

55

0.64

69

0.65

92

0.66

04

0.68

32

0.68

50

0.69

42

0.69

59

0.70

79

0.70

94

0.7

1 6

2 0.

7175

0.75

67

0.75

84

0.77

04

0.77

19

0.77

87

0.78

00

0.80

09

0.80

28

0.81

92

0.82

09

0.82

70

0.82

86

0.83

29

0.83

44

Min

.

7

0.59

27

0.59

49

0.62

64

0.62

93

0.64

07

0.64

33

0.65

52

0.65

74

0.67

73

0.68

06

0.68

87

0.69

1 8

0.70

29

0.70

56

0.71

18

0.71

42

0.75

12

0.75

43

0.76

55

0.76

83

0.77

43

0.77

67

0.79

46

0.79

81

0.81

37

0.81

68

0.82

1 6

0.

8245

0.82

80

0.83

08

Cla

ss

3 2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

-

-

-

Max

.

4

0.62

38

0.62

50

0.68

59

0.68

75

0.68

61

0.68

75

0.68

63

0.68

75

0.74

82

0.75

00

0.74

83

0.75

00

0.74

85

0.75

00

0.74

87

0.75

00

0.81

08

0.81

25

0.81

10

0.81

25

0.81

12

0.81

25

0.87

31

0.87

50

0.87

33

0.87

50

0.87

34

0.87

50

0.87

35

0.87

50

12

17

2B

38

2B

38

28

38

28

38

2B

38

28

38

28

3B

2B

3B

28

3B

28

3B

2B

38

2B

38

2B

38

28

38

28

38

0.62

50

0.62

50

0.68

75

0.68

75

0.68

75

0.68

75

0.68

75

0.68

75

0.75

00

0.75

00

0.75

00

0.75

00

0.75

00

0.75

00

0.75

00

0.75

00

0.81

25

0.81

25

0.81

25

0.81

25

0.81

25

0.81

25

0.87

50

C z

0.87

50

9

rn

0.87

50

0.87

50

0.87

50

0.87

50

0.87

50

(Tab

le 5 co

ntin

ues

on n

ext

page

)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

L

IMIT

ING

DIM

EN

SIO

NS

AN

D

TOLE

RA

NC

ES

, UN

J TH

RE

AD

FO

RM

(C

ON

T'D

)

T

T __

Cla

ss

Ext

erna

l Thr

eads

In

tern

al T

hrea

ds

t T

i

T T

Maj

or

Dia

met

er

Pitc

h D

iam

eter

M

ino

r D

iam

eter

R

oot

Rad

ius

Min

or

Pitc

h D

iam

eter

M

ajo

r D

ia.

Min

.

17

0.87

50

0.87

50

0.93

75

0.93

75

0.93

75

0.93

75

0.93

75

0.93

75

1 .ooo

o 1 .o

ooo

1 .ooo

o 1 .o

ooo

1 .ooo

o 1 .o

ooo

1 .ooo

o 1 .

OD

00

1.06

25

1.06

25

1.06

25

1.06

25

1.06

25

1.06

25

1.06

25

1.06

25

1.1 2

50

1 .I 25

0

1 .I 25

0 1.

1250

1.1 2

50

1.12

50

Nom

inal

Size

an

d Th

read

s pe

r in

.

1

0.87

50-2

0

0.93

75-1

2

0.93

75- 1

6

0.93

75-2

0

1 .O

OO

O-8

1 .o

ooo-

12

1 .O

OO

O-1

6

1 .o

ooo-

20

1.06

25-8

1.06

25-1

2

1.06

25- 1

6

1.06

25-1

8

1.1

250

-7

1.12

50-8

1.12

50-1

2

Ser

ies

Des

igna

, ti

on

2

UN

JEF

UN

J

UN

J

UN

JEF

UN

JC

UN

JF

UN

J

UN

JEF

UN

J

UN

J

UN

J

UN

JEF

UN

JC

UN

J

UN

JF

Dia

Max

.

13

0.83

31

0.83

31

0.86

64

0.86

64

0.88

52

0.88

52

0.89

56

0.89

56

0.89

33

0.89

33

0.92

89

0.92

89

0.94

77

0.94

77

0.95

81

0.95

81

0.95

58

0.95

58

0.99

1 4

0.

991

4

1.01

02

1.01

02

1.01

59

1.01

59

1.00

30

1.00

30

1.01

83

1.01

83

1.05

39

1.05

39

eter

Min

.

14

0.82

63

0.82

63

0.85

64

0.85

64

0.87

67

0.87

67

0.88

88

0.88

88

0.87

83

0.87

83

0.91

89

0.91

89

0.93

92

0.93

92

0.95

13

0.95

13

0.94

08

0.94

08

0.98

1 4

0.

981

4

1.00

1 7

1.

001

7

1.00

84

1.00

84

0.98

59

0.98

59

1.00

33

1.00

33

1.04

39

1.04

39

Cla

ss

Max

.

4

0.87

37

0.87

50

0.93

58

0.93

75

0.93

60

0.93

75

0.93

61

0.93

75

0.99

80

1 .ooo

o 0.

9982

1 .o

ooo

0.99

85

1 .ooo

o 0.

9986

1 .o

ooo

1.06

05

1.06

25

1.06

08

1.06

25

1.06

1 0

1.06

25

1.06

1 1

1.

0625

1 .I 2

28

1.1 2

50

1 .I 2

29

1.12

50

1.12

32

1.12

50

Min

.

5

0.86

56

0.86

69

0.92

44

0.92

61

0.92

66

0.92

81

0.92

80

0.92

94

0.98

30

0.98

50

0.98

68

0.98

86

0.98

91

0.99

06

0.99

05

0.99

19

1.04

55

1.04

75

1.04

94

1.05

1 1

1.05

1 6

1.

0531

1.05

24

1.05

38

1.1 0

64

1.1 0

86

1.1 0

79

1.11

00

1.11

18

1.11

36

Max

.

6

0.84

1 2

0.84

25

0.88

1 7

0.

8834

0.89

54

0.89

69

0.90

36

0.90

50

0.91

68

0.91

88

0.94

41

0.94

59

0.95

79

0.95

94

0.96

61

0.96

75

0.97

93

0.98

1 3

1.00

67

1.00

84

1.02

04

1.02

19

1.02

50

1.02

64

1.03

00

1.03

22

1.04

1 7

1 .

Om

8

1.06

91

1.07

09

Min

.

7

0.83

68

0.83

92

0.87

60

0.87

92

0.89

04

0.89

32

0.89

91

0.90

1 6

0.91

00

0.91

37

0.93

82

0.94

1 5

0.95

29

0.95

57

0.96

16

0.96

41

0.97

25

0.97

62

1.00

1 0

1.00

42

1.01

54

1 .0

1 8

2

1.02

03

1.02

28

1.02

28

1.02

68

1.03

48

1.03

86

1.06

31

1.06

64

Max

.

8

0.81

59

0.81

72

0.83

96

0.84

13

0.86

38

0.86

53

0.87

83

0.87

97

0.85

37

0.85

56

0.90

20

0.90

38

0.92

63

0.92

78

0.94

08

0.94

22

0.9

162

0.91

82

0.96

46

0.96

63

0.98

88

0.99

03

0.99

69

0.99

83

0.95

78

0.96

00

0.97

86

0.98

06

1.02

70

1.02

88

Min

.

9

0.80

85

0.81

09

0.82

88

0.83

20

0.85

50

0.85

78

0.87

08

0.87

33

0.83

93

0.84

30

0.89

10

0.89

44

0.91

75

0.92

03

0.93

33

0.93

58

0.90

18

0.90

55

0.95

38

0.95

71

0.98

00

0.98

28

0.98

89

0.99

14

0.94

20

0.94

60

0.96

41

0.96

79

1.01

60

1.01

93

Max

.

10

0.00

90

0.00

90

0.01

50

0.01

50

0.01

13

0.01

13

0.00

90

0.00

90

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.00

90

0.00

90

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.02

58

0.02

58

0.02

26

0.02

26

0.01

50

0.01

50

Min

.

11

0.00

75

0.00

75

0.01

25

0.01

25

0.00

94

0.00

94

0.00

75

0.00

75

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.00

75

0.00

75

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83

0.02

14

0.02

14

0.01

88

0.01

88

0.01

25

0.01

25

Max

.

15

0.84

82

0.84

68

0.89

08

0.88

89

0.90

34

0.90

18

0.91

09

0.90

94

0.92

76

0.92

54

0.95

35

0.95

1 6

0.96

59

0.96

43

0.97

34

0.97

1 9

0.99

02

0.98

80

1.01

58

1.01

39

1.02

84

1.02

68

1.03

26

1.03

10

1.04

16

1.03

93

1.05

28

1.05

05

1.07

87

1.07

68

Min

.

16

0.84

25

0.84

25

0.88

34

0.88

34

0.89

69

0.89

69

0.90

50

0.90

50

0.91

88

0.91

88

0.94

59

0.94

59

0.95

94

0.95

94

0.96

75

0.96

75

0.98

13

0.98

1 3

1.00

84

1.00

84

1.02

1 9

1.

021

9

1.02

64

1.02

64

1.03

22

1.03

22

1.04

38

1.04

38

1.07

09

1.07

09

3 12

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

3

8

28

38

28

38

28

38

28

3

8

I

W

W

ul

A

(Tab

le 5

con

tinue

s on

nex

t pag

e)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

LI

MIT

ING

DIM

EN

SIO

NS

AN

D

TOLE

RA

NC

ES

, UN

J TH

RE

AD

FO

RM

(CO

NT'

D)

Nom

inal

Siz

e an

d Th

read

s pe

r in

.

1

1.12

50-1

6

1.12

50-1

8

1.18

75-8

1.18

75-1

2

1.18

75-1

6

1.18

75-1

8

N

1.25

00-7

1.25

00-8

1.25

00-1

2

1.25

00-1

6

1.25

00-1

8

1.31

25-8

1.31

25-1

2

1.31

25-1

6

1.31

25-

1 8

Ser

ies

Des

igna

- ti

on

2

UN

J

UN

JEF

UN

J

UN

J

UN

J

UN

JEF

UN

JC

UN

J

UN

JF

UN

J

UN

JEF

UN

J

UN

J

UN

J

UN

JEF

Cla

ss

3 2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

- T t

Ext

erna

l Thr

eads

Maj

or

Dia

met

er

Dia

met

er

Dia

met

er

Min

or

Pitc

h T

Max

.

4

1.1 2

35

1.1 2

50

1.1 2

36

1.1

250

1.18

54

1.18

75

1.18

58

1.18

75

1 .I 8

60

1.18

75

1.1

860

1 .I 8

75

1.24

78

1.25

00

1.24

79

1.25

00

1.24

82

1.25

00

1.24

85

1.25

00

1.24

85

1.25

00

1.31

04

1.31

25

1.31

08

1.31

25

1.31

10

1.31

25

1.31

10

1.31

25

Min

.

1.08

29

1.11

41

6 5

Max

.

1.11

56

1.08

44

1.1 1

49

1.08

75

1.1 1

63

1.08

89

1.17

04

1.27

64

1.30

38

1.27

49

1.30

23

1.27

19

1.30

31

1.27

04

1.30

1 6

1.25

84

1.30

1 1

1.

2567

1.

2994

1.23

13

1.29

75

1.22

92

1.29

54

1.21

39

1.24

13

1.21

24

1.23

98

1.20

94

1.24

06

1.20

79

1.23

91

1.19

59

1.23

86

1 .I 9

41

1.23

68

1.1 6

88

1.23

50

1.1 6

67

1.23

29

1 .I 5

72

1.23

36

1.15

50

1.23

14

1.15

14

1.17

88

1.14

99

1.17

73

1.14

69

1.17

81

1.14

54

1.17

66

1.13

34

1.17

61

1.13

17

1.17

44

1.10

63

1.17

25

1.10

42

Min

.

1.05

1 3

1.

0779

a 7

Max

.

1.08

07

1.05

28

1.08

28

1.05

94

1.08

53

1.06

08

1.09

72

1.24

83

1.27

28

1.24

68

1.27

00

1.24

03

1.26

81

1.23

88

1.26

53

1.21

63

1.25

41

1.21

46

1.25

09

1 .I 68

2 1.

2260

1 .I 6

60

1.22

21

1.18

58

1.21

03

1.18

43

1.20

75

1.17

78

1.20

56

1 .I 76

3 1.

2028

1.15

38

1.19

13

1.15

20

1.18

79

1.10

56

1.16

35

1.1 0

36

1.1 5

97

1.08

50

1.15

17

1.08

28 1

.I 47

6

1.12

33

1.14

78

1.12

18

1.14

50

1.11

53

1.14

31

1.11

38

1.14

03

1.09

13

1.12

91

1.08

96

1.1 2

59

1.04

32

1 .I 0

1 1

1.04

1 0

Min

.

9

1.04

25

1.04

53

1.05

14

1.05

39

1.02

65

1.03

04

1.07

88

1.08

20

1 .I 0

49

1.1 0

77

1.11

36

1.11

64

1.06

68

1.07

09

1.08

90

1.09

28

1 .I 4

08

1.14

42

1 .I 67

4 1.

1702

1.17

61

1.17

89

1.15

14

1.1 5

53

1.20

38

1.20

70

1.22

99

1.23

27

1.23

86

1.24

14

Roo

t R

adiu

s

Max

.

10

0.01

13

0.01

13

0.01

00

0.01

00

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.02

58

0.02

58

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00 I M

in.

11

0.00

94

0.00

94

0.00

83

0.00

83

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83

0.02

1 4

0.

021

4

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83 r

F C

lass

12

28

38

28

38

28

3

8

28

3

8

28

38

28

38

28

3

8

28

3

8

28

38

28

38

28

3

8

28

3

8

28

38

28

3B

28

3

8

Inte

rnal

Thr

eads

~~

Min

or

Dia

met

er

Max

.

13

1.07

27

1.07

27

1.07

84

1.07

84

1.08

08

1.08

08

1.11

64

1.11

64

1.13

52

1.13

52

1 .I 4

09

1.14

09

1 .I 2

80

1.12

80

1.1 4

33

1.14

33

1.17

89

1.17

89

1 .I 9

77

1.1 9

77

1.20

34

1.20

34

1.20

58

1.20

58

1.24

14

1.24

1 4

1.26

02

1.26

02

1.26

59

1.26

59

Min

.

14

1.06

42

1.06

42

1.07

09

1.07

09

1.06

58

1.06

58

I ,1

064

1.10

64

1.12

67

1.12

67

1.13

34

1.1 3

34

1.11

09

1.11

09

1 .I 2

83

1.12

83

1.1 6

89

1.16

89

1.1 8

92

1 .I 8

92

1 .I 9

59

1.19

59

1.19

08

1.1 9

08

1.23

1 4

1.

2314

1.25

17

1.25

17

1.25

84

1.25

84

Pitc

h D

iam

eter

Max

.

15

1.09

09

1.08

93

1.09

51

1.09

35

1.11

54

1.11

31

1 .I 4

09

1.13

90

1.1

535

1.

1519

1.1 5

77

1.15

61

1 .I 6

68

1.16

44

1.17

80

1.17

57

1.20

39

1.20

1 9

1.21

60

1.21

44

1.22

02

1.21

86

1.24

05

1.23

82

1.26

59

1.26

40

1.27

85

1.27

69

1.28

27

1.28

1 1

Min

.

16

1.08

44

1.08

44

1.08

89

1.08

89

1 .I 06

3 1 .I 0

63

1.1 3

34

1 .I 3

34

1.14

69

1.14

69

1.15

14

1.1 5

14

1.1 5

72

1 .I 5

72

1.1 6

88

1.16

88

1.19

59

1.19

59

1.20

94

1.20

94

1.21

39

1.21

39

1.23

13

1.23

1 3

1.25

84

1.25

84

1.27

1 9

1.27

1 9

1.27

64

1.27

64

Maj

or

Dia

.

Min

.

17

1.12

50

1.12

50

1.1 2

50

1.1 2

50

1 .I 8

75

1 .I 8

75

1 .I 8

75

1 .I 8

75

1.18

75

1 .I 8

75

1.18

75

1.1 8

75

1.25

00

1.25

00

1.25

00

1.25

00

1.25

00

1.25

00

1.25

00

1.25

00

1.25

00

1.25

00

1.31

25

1.31

25

1.31

25

1.31

25

1.31

25

1.31

25

1.31

25

1.31

25

(Tab

le 5 co

ntin

ues on

nex

t pag

e}

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

LI

MIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES

, U

NJ

THR

EA

D F

OR

M (C

ON

T'D

) _

_

Cla

ss

3 - T

T

F E

xter

nal T

hrea

ds

Inte

rnal

Thr

eads

t 1

T T

T T

T M

ajor

D

iam

eter

P

itch

Min

or

Roo

t M

inor

D

iam

eter

P

itch

Maj

or

Dia

.

Min

.

17

1.37

50

1.37

50

1.37

50

1.37

50

1.37

50

1.37

50

1.37

50

1.37

50

1.37

50

1.37

50

1.43

75

1.43

75

1.43

75

1.43

75

1.43

75

1.43

75

1.43

75

1.43

75

1.50

00

1.50

00

1.50

00

1.50

00

1.50

00

1.50

00

1.50

00

1.50

00

1.50

00

1.50

00

1.56

25

1.56

25

Ser

ies

Des

igna

- ti

on

2

UN

JC

UN

J

UN

JF

UN

J

UN

JEF

UN

J

UN

J

UN

J

UN

JEF

UN

JC

UN

J

UN

JF

UN

J

UN

JEF

UN

J

Nom

inal

Siz

e an

d Th

read

s pe

r in

.

1

1.37

50-6

1.37

50-8

1.37

50-1

2

1.37

50-1

6

1.37

50-1

8

1.43

75-8

h)

1.43

75-1

2

1.43

75-1

6

1.43

75-1

8

1.50

00-6

1.50

00-8

1.50

00-1

2

1.50

00-1

6

1.50

00-1

8

1.56

25-8

Dia

Max

.

6

1.26

43

1.26

67

1.29

1 6

1.

2938

1.31

90

1.32

09

1.33

29

1.33

44

1.33

74

1.33

89

1.35

41

1.35

63

1.38

16

1.38

34

1.39

53

1.39

69

1.39

99

1.40

1 4

1.38

93

1.39

1 7

1.41

66

1.41

88

1.44

40

1.44

59

1.45

78

1.45

94

1.46

24

1.46

39

1.47

91

1.48

1 3

Dia

l

Max

.

8

1.18

01

1.1 8

25

1.22

85

1.23

06

1.27

69

1.27

88

1.30

1 3

1.

3028

1.30

93

1.31

08

1.29

10

1.29

32

1.33

95

1.34

13

1.36

37

1.36

53

1.37

18

1.37

33

1.30

51

1.30

75

1.35

35

1.35

56

1.40

1 9

1.

4038

1.42

62

1.42

78

1.43

43

1.43

58

1.41

60

1:41

82

Ra

Max

.

10

0.03

01

0.03

01

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.03

01

0.03

01

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.02

26

0.02

26

Dia

l

Max

.

15

1.27

71

1.27

45

1.30

31

1.30

08

1.32

91

1.32

70

1.34

1 0

1.33

94

1.34

52

1.34

36

1.36

57

1.36

34

1.39

10

1.38

91

1.40

37

1.40

20

1.40

79

1.40

62

1.40

22

1.39

96

1.42

83

1.42

59

1.45

42

1.45

22

1.46

62

1.46

45

1.47

04

1.46

87

1.49

09

1.48

85

!ter

Min

.

7

1.25

63

1.26

07

1.28

44

1.28

84

1.31

27

1.31

62

1.32

78

1.33

06

1.33

25

1.33

53

1.34

69

1.35

09

1.37

57

1.37

90

1.39

01

1.39

30

1.39

49

1.39

77

1.38

12

1.38

56

1.40

93

1.41

33

1.43

76

1.44

1 1

1.45

26

1.45

55

1.45

74

1.46

02

1.47

1 7

1.

4758

eter

Min

.

9

1.16

20

1.16

64

1.21

37

1.21

77

1.26

56

1.26

91

1.29

24

1.29

52

1.30

1 1

1.

3039

1.27

62

1.28

02

1.32

86

1.33

1 8

1.35

47

1.35

76

1.36

25

1.36

63

1.28

69

1.29

1 3

1.33

86

1.34

26

1.39

05

1.39

40

1.41

72

1.42

01

1.42

60

1.42

88

1.40

1 0

1.40

51

eter

Min

.

16

1.26

67

1.26

67

1.29

38

1.29

38

1.32

09

1.32

09

1.33

44

1.33

44

1.33

89

1.33

89

1.35

63

1.35

63

1.38

34

1.38

34

1.39

69

1.39

69

1.40

1 4

1.40

1 4

1.39

1 7

1.39

1 7

1.41

88

1.41

88

1 A45

9 1 .

M59

I .459

4 1.

4594

1.46

39

1.46

39

1.48

1 3

1.

481

3

us Min

.

11

0.02

50

0.02

50

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83

0.02

50

0.02

50

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.00

83

0.00

83

0.01

88

0.01

88

~ ~~

Min

.

14

1.21

27

1.21

27

1.25

33

1.25

33

1.29

39

1.29

39

1.31

42

1.31

42

1.32

09

1.32

09

1.31

58

1.31

58

1.35

64

1.35

64

1.37

67

1.37

67

1.38

34

1.38

34

1.33

77

1.33

77

1.37

83

1.37

83

1.41

89

1.41

89

1.43

92

1.43

92

1.44

59

1.44

59

1.44

08

1.44

08

Cla

ss

Max

.

4

1.37

26

1.37

50

1.37

28

1.37

50

1.37

31

1.37

50

1.37

35

1.37

50

1.37

35

1.37

50

1.43

53

1.43

75

1.43

57

1.43

75

1.43

59

1.43

75

1.43

60

1.43

75

1.49

76

1.50

00

1.49

78

1.50

00

1.49

81

1.50

00

1.49

84

1.50

00

1.49

85

1.50

00

1.56

03

1.56

25

Min

.

5

1.35

44

1.35

68

1.35

78

1.36

00

1.36

1 7

1.

3636

1.36

41

1.36

56

1.36

48

1.36

63

1.42

03

1.42

25

1.42

43

1.42

61

1.42

65

1.42

81

1.42

73

1.42

88

1.47

94

1.48

1 8

1.48

28

1.48

50

1.48

67

1 A88

6

1.48

90

1.49

06

1.48

98

1.49

13

1.54

53

1.54

75

Max

.

13

1.23

27

1.23

27

1.26

83

1.26

83

1.30

39

1.30

39

1.32

27

1.32

27

1.32

84

1.32

84

1.33

08

1.33

08

1.36

64

1.36

64

1.38

52

1.38

52

1.39

09

1.39

09

1.35

77

1.35

77

1.39

33

1.39

33

1.42

89

1.42

89

1 .U

77

1.

4477

1.45

34

1.45

34

1.45

58

1.45

58

12

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A -

2B

3B

28

38

28

38

28

38

28

3B

2B

3B

2B

38

28

3B

28

3

8

28

38

28

38

28

3B

26

3B

2B

3B

28

3B

(Tab

le 5

con

tinue

s on

nex

t pa

ge)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

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ith A

SM

ED

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ent p

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by IH

S L

icen

see=

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onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

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ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

Nom

inal

Siz

e an

d T

hrea

ds

per

in.

1

1.56

25-1

2

1.56

25-1

6

1.56

25-1

8

1.62

50-8

1.62

50-1

2

1.62

50-1

6

I4

1.62

50-1

8

1.68

75-8

I .6

875-

12

1.68

75-1

6

1.68

75-1

8

1.75

00-5

1.75

00-8

1.75

00-1

2

1.75

00-1

6

Ser

ies

Des

igna

- ti

on

2

UN

J

UN

J

UN

JEF

UN

J

UN

J

UN

J

UN

JEF

UN

J

UN

J

UN

J

UN

JEF

UN

JC

UN

J

UN

J

UN

J

TAB

LE 5

LI

MIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES

, UN

J TH

RE

AD

FO

RM

(CO

NT'

D)

D

V) 5

Dia

met

er

T C

lass

3

Max

.

1.56

07

2A

4

3A

1.56

25

2A

1.56

09

3A

1.56

25

2A

1.75

00

3A

1.74

84

2A

1.75

00

3A

1.74

82

2A

1.75

00

3A

1.74

77

2A

1.75

00

3A

1.74

73

2A

1.68

75

3A

1.68

60

2A

1.68

75

3A

1.68

59

2A

1.68

75

3A

1.68

57

2A

1.68

75

3A

1.68

53

2A

1.62

50

3A

1.62

35

2A

1.62

50

3A

1.62

34

2A

1.62

50

3A

1.62

32

2A

1.62

50

3A

1.62

28

2A

1.56

25

3A

1.56

10

Min

.

5

1.54

93

1.55

1 1

1.55

1 5

1.

5531

1.55

23

1.55

38

1.60

78

1.61

00

1.61

18

1.61

36

1.61

40

1.61

56

1.61

48

1.61

63

1.67

03

1.67

25

1.67

43

1.67

61

I .676

5 1.

6781

1.67

73

1.67

88

1.72

68

1.72

95

1.73

27

1.73

50

1.73

68

1.73

86

1.73

90

1.74

06

Ext

erna

Pitc

h D

iam

eter

Max

.

6

1.50

66

1.50

84

1.52

03

1.52

1 9

1.52

49

1.52

64

1.54

1 6

1.54

38

1.56

91

1.57

09

1.58

28

1.58

44

1.58

74

1.58

89

1.60

41

1.60

63

1.63

1 6

1.63

34

1.64

53

1.64

69

1.64

99

1.65

1 4

1.61

74

1.62

01

1.66

65

1.66

88

1.69

41

1.69

59

1.70

78

1.70

94

Min

.

7

1.50

07

1.50

40

1.51

51

1.51

80

1.51

99

1.52

27

1.53

42

1.53

82

1.56

32

1.56

65

1.57

76

1.58

05

1.58

24

1.58

52

1.59

66

1.60

07

1.62

56

1.62

89

1.64

00

1.64

29

1.64

48

1.64

76

1.60

85

1.61

34

1.65

90

1.66

31

1.68

81

1.69

1 4

1.70

25

1.70

54

rhre

ads Min

or

Dia

met

er

Max

.

a 1.

4645

1.

4663

1.48

87

1.49

03

1.49

68

1.49

83

1.47

85

1.48

06

1.52

70

1.52

88

1.55

1 2

1.

5528

1.55

93

1.56

08

1.54

1 0

1.54

32

1.58

95

1.59

13

1.61

37

1.61

53

1.62

18

1.62

33

1.51

64

1.51

91

1.60

34

1.60

56

1.65

20

1.65

38

1.67

62

1.67

78

Min

.

9

1.45

36

1.45

68

1.47

97

1.48

26

1.48

85

1.49

1 3

1.46

35

1.46

75

1.51

60

1.51

94

1.54

22

1.54

51

1.55

1 0

1.55

38

1.52

59

1.53

00

1.57

84

1.58

18

1.60

46

1.60

75

1.61

34

1.61

62

1.49

53

1.50

02

1.58

83

1.59

24

1.64

1 0

1.64

42

1.66

71

1.67

00

.Roo

t1

Rad

ius

Max

.

10

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.01

00

0.01

00

0.03

61

0.03

61

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.00

94

0.00

94

0.00

83

0.01

88

38

0.

0188

2B

38

0.00

94

2B

0.00

94

38

0.

0125

2

8

0.01

25

38

0.

0188

28

0.

0188

38

0.

0300

28

0.

0300

38

0.00

83

28

0.00

83

38

0.00

94

2B

0.00

94

38

0.

0125

28

0.

0125

38

0.

0188

2

8

0.01

88

3B

0.00

83

28

0.00

83

38

0.00

94

28

0.00

94

38

0.

0125

26

0.

0125

i In

1

Min

or

Dia

met

er

Max

.

13

1.49

14

1.49

1 4

1.51

02

1.51

02

1.51

59

1.51

59

1.51

83

1.51

83

1.55

39

1.55

39

1.57

27

1.57

27

1.57

84

1.57

84

1.58

08

1.58

08

1.61

64

1.61

64

1.63

52

1.63

52

1.64

09

1.64

09

1.57

92

1.57

92

1.64

33

1.64

33

1.67

89

1.67

89

1.69

77

1.69

77

Min

.

14

1.48

1 4

1.48

1 4

1.50

17

1.50

17

1.50

84

1.50

84

1.50

33

1.50

33

1.54

39

1.54

39

1.56

42

1.56

42

1.57

09

1.57

09

1.56

58

1.56

58

1.60

64

1.60

64

1.62

67

1.62

67

1.63

34

1.63

34

1.55

52

1.55

52

1.62

83

1.62

83

1.66

89

1.66

89

1.68

92

1.68

92

,ria

l Th

read

s

Pitc

h D

iam

eter

T

Max

.

15

1.51

60

1.51

41

1.52

87

1.52

70

1.53

29

1.53

1 2

1.55

35

1.55

10

1.57

85

1.57

66

1.59

1 2

1.

5895

1.59

54

1.59

37

1.61

60

1.61

36

1.64

1 2

1.

6392

1.65

38

1.65

21

1.65

80

1.65

63

1.63

17

1.62

88

1.67

86

1.67

62

1.70

37

1.70

1 7

1.71

63

1.71

46

Min

.

16

1.50

84

1.50

84

1.52

19

1.52

19

1.52

64

1.52

64

1.54

38

1.54

38

1.57

09

1.57

09

1.58

44

1.58

44

1.58

89

1.58

89

1.60

63

1.60

63

1.63

34

1.63

34

1.64

69

1.64

69

1.65

1 4

1.65

1 4

1.62

01

1.62

01

1.66

88

1.66

88

1.69

59

1.69

59

1.70

94

1.70

94

--"

2

Maj

or

Dia

. A

Min

.

17

-CD

(D

U1

1.56

25

1.56

25

1.56

25

1.56

25

1.56

25

1.56

25

1.62

50

1.62

50

1.62

50

1.62

50

1.62

50

1.62

50

1.62

50

1.62

50

1.68

75

1.68

75

1.68

7 5

1.

6875

1.68

75

1.68

75

1.68

75

1.68

7 5

C

1.75

00

z 1.

7500

3

m

1.75

00

0

1.75

00

1.75

00

1.75

00

1.75

00

1.75

00

(Tab

le 5

con

tinue

s on

nex

t pag

e)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

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ith A

SM

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by IH

S L

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see=

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obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

LI

MIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES

, U

NJ

THR

EA

D F

OR

M (C

ON

T'D

)

T T

E

xter

nal T

hrea

ds

In

Min

or

Dia

met

er

,ria

l Th

read

s

Pitc

h D

iam

eter

t

1 T

T

Maj

or

Dia

met

er

Pitc

h D

iam

eter

M

inor

D

iam

eter

R

oot

Nom

inal

Siz

an

d Th

read

: pe

r in

.

1

1.81

25-8

1.81

25-1

2

1.81

25-1

6

1.87

50-8

1.87

50-1

2

1.87

50- 1

6

1.93

75-8

N

1.93

75-1

2

1.93

75-1

6

2.00

00-4

.5

2.00

00-8

2.00

00-1

2

2.00

00-1

6

2.1

250-

8

2.12

50-1

2

Ser

ies

Des

igna

, ti

on

2

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

JC

UN

J

UN

J

UN

J

UN

J

UN

J

t RZ

Max

.

10

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.04

01

0.04

01

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

i' us Min

.

11

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.01

88

0.0

188

0.01

25

0.01

25

0.00

94

0.00

94

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.03

34

0.03

34

0.01

88

0.01

88

0.01

25

0.01

25

3.00

94

3.00

94

1.01

88

1.01

88

1.01

25

1.01

25 "

4-

"

"

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1.87

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1.87

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1.87

32

1.87

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1.87

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1.93

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1.93

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1.93

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1.93

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1.93

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1.93

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1.99

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2.00

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2.00

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2.00

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1.99

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2.00

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2.1

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2.1

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2.1

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1.79

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1.79

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1.79

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1.80

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1.80

1 5

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1.85

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1.92

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1.92

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1.92

43

1.92

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1.92

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1.92

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1.97

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1.97

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1.98

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1.98

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1.98

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1.75

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1.77

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1.85

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1.85

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1.94

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1.94

59

1.95

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1.95

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2.04

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2.06

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1.72

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1.72

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1.75

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1.75

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1.76

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1.76

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1.78

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1.78

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1.81

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1.82

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1.83

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1.87

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1.87

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1.88

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1.84

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1.84

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1.93

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1.94

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2.03

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2.06

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1.66

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1.66

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1.71

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1.71

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1.73

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1.74

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1.73

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1.77

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1.79

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1.83

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1.84

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1.86

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1.85

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1.85

56

1.90

20

1.90

38

1.92

62

1.92

78

1.97

82

1.98

06

2.02

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2.02

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1.65

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1.65

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1.70

34

1.70

68

1.72

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1.73

25

1.71

31

1.71

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1.76

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1.76

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1.79

50

1.77

56

1.77

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1.82

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1.83

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1.85

45

1.85

75

1.71

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1.72

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1.83

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1.84

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1.89

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1.89

42

1.91

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1.92

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1.96

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1.96

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2.01

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1.70

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1.70

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1.74

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1.76

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1.76

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1.80

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1.82

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1.82

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1.86

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1.86

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1.88

52

1.88

52

1.81

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1.89

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1.89

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1.92

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1.92

89

1.94

77

1.94

77

2.01

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83

2.05

39

2.05

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14

1.69

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1.69

08

1.73

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1.75

17

1.75

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1.75

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1.75

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1.79

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1.81

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1.81

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1.81

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1.81

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1.85

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1.78

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1.91

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1.93

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1.93

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1.76

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1.77

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1.77

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1.80

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1.86

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1.86

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1.92

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1.92

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1.95

38

1.95

1 8

1.96

64

1.96

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2.05

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2.05

1 5

2.07

88

2.07

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.

16

1.73

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1.

731

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1.75

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1.75

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1.77

19

1.77

19

1.79

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1.79

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1.82

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1.82

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1.83

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1 B34

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1.85

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1.85

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1.88

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1.89

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1.89

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1.85

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1.85

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1.91

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1.91

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1.94

59

1.94

59

1.95

94

1.95

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2.04

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2.04

38

2.07

09

2.07

09

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17

1.81

25

1.81

25

1.81

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1.81

25

1.81

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1.81

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1.87

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1.87

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1.87

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1.87

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1.93

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1.93

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1.93

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1.93

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2.00

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2.25

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2.25

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2.25

00

2.25

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2.25

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2.25

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2.37

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2.37

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2.37

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2.37

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2.37

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2.08

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2.08

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2.10

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2.1 6

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2.1 6

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2.1

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2.1

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2.20

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2.20

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2.29

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2.29

38

2.31

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2.32

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2.33

27

2.33

44

2.33

45

2.33

76

2.41

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2.41

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2.44

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2.44

59

2.45

77

2.45

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2.54

13

2.54

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2.56

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2.57

09

2.58

27

2.58

44

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2.05

1 2

2.05

28

1.99

05

1.99

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2.1 0

32

2.10

56

2.1

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2.1

538

2.17

62

2.17

78

2.22

82

2.23

06

2.27

69

2.27

88

2.30

1 1

2.30

28

2.20

82

2.21

13

2.35

32

2.35

56

2.40

1 9

2.40

38

2.42

61

2.42

78

2.47

82

2.48

06

2.52

69

2.52

88

2.55

1 1

2.55

28

Min

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9

2.04

20

2.04

50

1.96

74

1.97

27

2.08

77

2.09

21

2.1

408

2.1

442

2.1 6

70

2.1 7

00

2.21

26

2.21

71

2.26

56

2.26

92

2.29

1 8

2.29

49

2.1

826

2.1

883

2.33

75

2.34

20

2.39

06

2.39

42

2.41

68

2.41

99

2.46

24

2.46

69

2.51

56

2.51

92

2.54

18

2.54

49

Min

.

14

2.06

42

2.06

42

2.03

35

2.03

35

2.1 2

83

2.1 2

83

2.16

89

2.16

89

2.18

92

2.18

92

2.25

33

2.25

33

2.29

39

2.29

39

2.3

142

2.31

42

2.25

65

2.25

65

2.37

83

2.37

83

2.41

89

2.41

89

2.43

92

2.43

92

2.50

33

2.50

33

2.54

39

2.54

39

2.56

42

2.56

42

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4

2.12

34

2.1 2

50

2.24

71

2.25

00

2.24

76

2.25

00

2.24

82

2.25

00

2.24

84

2.25

00

2.37

26

2.37

50

2.37

31

2.37

50

2.37

33

2.37

50

2.49

69

2.50

00

2.49

76

2.50

00

2.49

81

2.50

00

2.49

83

2.50

00

2.62

25

2.62

50

2.62

31

2.62

50

2.62

33

2.62

50

Min

.

5

2.1

140

2.1

156

2.22

51

2.22

80

2.23

26

2.23

50

2.23

68

2.23

86

2.23

90

2.24

06

2.35

76

2.36

00

2.36

17

2.36

36

2.36

39

2.36

56

2.47

31

2.47

62

2.48

26

2.48

50

2.48

67

2.48

86

2.48

89

2.49

06

2.60

75

2.61

00

2.61

17

2.61

36

2.61

39

2.61

56

Min

.

7

2.07

74

2.08

04

2.09

31

2.09

84

2.15

84

2.16

28

2.18

80

2.1

91 4

2.20

24

2.20

54

2.28

33

2.28

78

2.31

28

2.31

63

2.32

72

2.33

03

2.32

41

2.32

98

2.40

82

2.41

27

2.43

78

2.44

1 3

2.45

22

2.45

53

2.53

31

2.53

76

2.56

28

2.56

63

2.57

72

2.58

03

Max

.

10

0.01

13

0.01

13

0.04

01

0.04

01

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.04

51

0.04

51

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

Min

.

11

0.00

94

0.00

94

0.03

34

0.03

34

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.03

75

0.03

75

0.0

188

0.0

188

0.01

25

0.01

25

0.00

94

0.00

94

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

Max

.

13

2.07

27

2.07

27

2.06

02

2.06

02

2.14

33

2.14

33

2.17

89

2.17

89

2.1

977

2.

1 9

77

2.26

83

2.26

83

2.30

39

2.30

39

2.32

27

2.32

27

2.28

65

2.28

65

2.39

33

2.39

33

2.42

89

2.42

89

2.44

77

2.44

77

2.51

83

2.51

83

2.55

39

2.55

39

2.57

27

2.57

27

Max

.

15

2.09

1 4

2.08

96

2.1 1

83

2.1 1

52

2.1

792

2.1 7

66

2.20

38

2.20

18

2.21

64

2.21

46

2.30

43

2.30

17

2.32

90

2.32

69

2.34

16

2.33

98

2.35

1 1

2.34

77

2.42

94

2.42

68

2.45

40

2.45

1 9

2.46

66

2.46

48

2.55

45

2.55

18

2.57

90

2.57

69

2.59

1 6

2.58

98

Min

.

16

2.08

44

2.08

44

2.10

57

2.1

057

2.1

688

2.1

688

2.1

959

2.1 9

59

2.20

94

2.20

94

2.29

38

2.29

38

2.32

09

2.32

09

2.33

44

2.33

44

2.33

76

2.33

76

2.41

88

2.41

88

2.44

59

2.44

59

2.45

94

2.45

94

2.54

38

2.54

38

2.57

09

2.57

09

2.58

44

2.58

44

3 12

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

28

38

2B

3B

28

38

28

38

28

38

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3

8

2B

38

28

3B

28

38

28

38

28

38

2B

38

2B

3B

2B

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28

3

8

2.50

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2.50

00

2.50

00

z

2.50

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L

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2.62

50

z

2.62

50

2 U -

(Tab

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con

tinue

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nex

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e)

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3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

LI

MIT

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DIM

EN

SIO

NS

AN

D T

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RA

NC

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, U

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I E

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nal T

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ds

T

T P

itch

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met

er

Maj

or

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.

Min

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17

2.75

00

2.75

00

2.75

00

2.75

00

2.75

00

2.75

00

2.75

00

2.75

00

2.87

50

2.87

50

2.87

50

2.87

50

2.87

50

2.87

50

3.00

00

3.00

00

3.00

00

3.00

00

3.00

00

3.00

00

3.00

00

3.00

00

3.12

50

3.12

50

3.12

50

3.12

50

3.12

50

3.12

50

R

Ra

Min

or

Dia

met

er

Pt us M

in.

11

0.03

75

0.03

75

0.01

88

0.

01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.03

75

0.03

75

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

Maj

or

Dia

met

er

Dia

met

er

Pitc

h N

omin

al S

ize

and

Thre

ads

per i

n.

1

2.75

00-4

2.75

00-8

2.75

00-1

2

2.75

00-1

6

2.87

50-8

2.87

50-1

2 t4

4

2.87

50-1

6

3.00

00-4

3.00

00-8

3.00

00-1

2

3.00

00-1

6

3.12

50-8

3.12

50-1

2

3.12

50-1

6

Ser

ies

Des

igna

- ti

on

2

UN

JC

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

JC

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

1 D

iar

Max

.

15

2.60

13

2.59

79

2.67

96

2.67

69

2.70

40

2.70

19

2.71

66

2.71

48

2.80

48

2.80

20

2.82

91

2.82

71

2.84

17

2.83

99

2.85

1 5

2.84

80

2.92

99

2.92

71

2.95

41

2.95

21

2.96

67

2.96

49

3.05

50

3.05

22

3.07

91

3.07

71

3.09

17

3.08

99

!ter

Min

.

16

2.58

76

2.58

76

2.66

88

2.66

88

2.69

59

2.69

59

2.70

94

2.70

94

2.79

38

2.79

38

2.82

09

2.82

09

2.83

44

2.83

44

2.83

76

2.83

76

2.91

88

2.91

88

2.94

59

2.94

59

2.95

94

2.95

94

3.04

38

3.04

38

3.07

09

3.07

09

3.08

44

3.08

44

Max

. C

lass

M

ax.

13

2.53

65

2.53

65

2.64

33

2.64

33

2.67

89

2.67

89

2.69

77

2.69

77

2.76

83

2.76

83

2.80

39

2.80

39

2.82

27

2.82

27

2.78

65

2.78

65

2.89

33

2.89

33

2.92

89

2.92

89

2.94

77

2.94

77

3.01

83

3.01

83

3.05

39

3.05

39

3.07

27

3.07

27

Min

.

14

2.50

65

2.50

65

2.62

83

2.62

83

2.66

89

2.66

89

2.68

92

2.68

92

2.75

33

2.75

33

2.79

39

2.79

39

2.81

42

2.81

42

2.75

65

2.75

65

2.87

83

2.87

83

2.91

89

2.91

89

2.93

92

2.93

92

3.00

33

3.00

33

3.04

39

3.04

39

3.06

42

3.06

42

Min

.

9

2.43

24

2.43

82

2.58

73

2.59

18

2.64

06

2.64

42

2.66

68

2.66

99

2.71

22

2.71

68

2.76

55

2.76

90

2.79

17

2.79

48

2.68

22

2.68

82

2.83

70

2.84

1 7

2.89

05

2.89

40

2.91

67

2.91

98

2.96

1 9

2.96

67

3.01

55

3.01

90

3.04

1 7

3.04

48

Max

.

8

2.45

81

2.46

13

2.60

32

2.60

56

2.65

19

2.65

38

2.67

61

2.67

78

2.72

82

2.73

06

2.77

69

2.77

88

2.80

1 1

2.80

28

2.70

81

2.71

13

2.85

31

2.85

56

2.90

19

2.90

38

2.92

61

2.92

78

2.97

81

2.98

06

3.02

69

3.02

88

3.05

1 1

3.05

28

Cla

ss

2.74

68

2A

4 3

Max

.

3A

2.75

00

2A

2.74

75

3A

2.75

00

2A

3A

2.74

81

3.12

50

3-4

3.12

33

2A

3.12

50

3A

3.12

31

2A

3.12

50

3A

3.12

24

2A

3.00

00

3A

2.99

83

2A

3.00

00

3A

2.99

81

2A

3.00

00

3A

2.99

74

2A

3.00

00

3A

2.99

68

2A

2.87

50

3A

2.87

33

2A

2.87

50

3A

2.87

31

2A

2.87

50

3A

2.87

25

2A

2.75

00

3A

2.74

83

2A

2.75

00

Min

.

2.58

44

2.72

30

6 5

Max

.

2.72

62

2.58

76

2.73

25

2.66

63

2.73

50

2.66

88

2.73

67

2.73

86

2.69

40

3 08

44

3.1 1

56

3.08

27

3.1

139

3.07

09

3.1

136

3.06

90

3.1

1 17

3.04

38

3.1

100

3.04

1 2

3.10

74

2.95

94

2.99

06

2.95

77

2.98

89

2.94

59

2.98

86

2.94

40

2.98

67

2.91

88

2.98

50

2.91

62

2.98

24

2.83

76

2.97

62

2.83

44

2.97

30

2.83

44

2.86

56

2.83

27

2.86

39

2.82

09

2.86

36

2.81

90

2.86

1 7

2.79

38

2.86

00

2.79

1 3

2.85

75

2.70

94

2.74

06

2.70

77

2.73

89

2.69

59

Min

.

7

2.57

39

2.57

97

2.65

80

2.66

25

2.68

78

2.69

1 3

2.70

22

2.70

53

2.78

29

2.78

75

2.81

27

2.81

62

2.82

71

2.83

02

2.82

37

2.82

96

2.90

77

2.91

24

2.93

77

2.94

1 2

2.95

21

2.95

52

3.03

26

3.03

74

3.06

27

3.06

62

3.07

71

3.08

02

12

10

0.04

51

0.04

51

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.04

51

0.04

51

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

t

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

3

8

28

3

8

28

3

8

28

3

8

r

Ln

9

Ln

L

L

{Tab

le 5 c

ontin

ues o

n ne

xt p

age)

W

W

Cn

Cop

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SM

E In

tern

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nal

Pro

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see=

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03/2

3/20

04 2

2:29

:39

MS

T Q

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ions

or

com

men

ts a

bout

this

mes

sage

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ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

LI

MIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES, U

NJ

THR

EA

D F

OR

M (C

ON

T'D

) >

-I-

T

Ext

erna

l Thr

eads

In

tern

al T

hrea

ds

t r

-r P

itch

Dia

met

er

Min

or

Dia

met

er

Roo

t M

inor

P

itch

Dia

met

er

Maj

or

Dia

met

er

Max

. M

in.

4

3.22

29

3.24

67

5

3.25

00

3.22

62

3.24

74

3.23

24

3.25

00

3.23

50

3.24

81

3.23

67

3.25

00

3.72

62

3.75

00

3.72

28

3.74

66

3.61

56

3.62

50

3.61

39

3.62

33

3.61

36

3.62

50

3.61

17

3.62

31

3.61

00

3.62

50

3.60

73

3.62

23

3.49

06

3.50

00

3.48

89

3.49

83

3.48

86

3.50

00

3.48

67

3.49

81

3.48

50

3.50

00

3.48

24

3.49

74

3.47

62

3.50

00

3.47

29

3.49

67

3.36

56

3.37

50

3.36

39

3.37

33

3.36

36

3.37

50

3.36

17

3.37

31

3.36

00

3.37

50

3.35

74

3.37

24

3.24

06

3.25

00

3.23

89

3.24

83

3.23

86

Maj

or

Dia

.

Min

.

17

3.25

00

3.25

00

3.25

00

3.25

00

3.25

00

3.25

00

3.25

00

3.25

00

3.37

50

3.37

50

3.37

50

3.37

50

3.37

50

3.37

50

3.50

00

3.50

00

3.50

00

3.50

00

3.50

00

3.50

00

3.50

00

3.50

00

3.62

50

3.62

50

Ser

ies

Des

igna

- ti

on

2

UN

JC

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

JC

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

JC

Nom

inal

Siz

e an

d Th

read

s pe

r in

.

1

3.25

00-4

3.25

00-8

3.25

00-1

2

3.25

00-1

6

3.37

50-8

3.37

50-1

2

t4 W

3.37

50-1

6

3.50

00-4

3.50

00-8

3.50

00-1

2

3.50

00-1

6

3.62

50-8

3.62

50-1

2

3.62

50-1

6

3.75

00-4

Ra

Max

.

10

0.04

51

0.04

51

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.04

51

0.04

51

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.02

26

0.02

26

0.01

50

0.01

50

0.01

13

0.01

13

0.04

51

0.04

51

Dia

l

Max

.

13

3.03

65

3.03

65

3.14

33

3.14

33

3.17

89

3.17

89

3.1

977

3.1

977

3.26

83

3.26

83

3.30

39

3.30

39

3.32

27

3.32

27

3.28

65

3.28

65

3.39

33

3.39

33

3.42

89

3.42

89

3.44

77

3.44

77

3.51

83

3.51

83

3.55

39

3.55

39

3.57

27

3.57

27

3.53

65

3.53

65

ster

Min

.

14

3.00

65

3.00

65

3.1 2

83

3.12

83

3.16

89

3.16

89

3.18

92

3.18

92

3.25

33

3.25

33

3.29

39

3.29

39

3.3

142

3.31

42

3.25

65

3.25

65

3.37

83

3.37

83

3.41

89

3.41

89

3.43

92

3.43

92

3.50

33

3.50

33

3.54

39

3.54

39

3.56

42

3.56

42

3.50

65

3.50

65

us Min

.

11

0.03

75

0.03

75

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.03

75

0.03

75

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.01

88

0.01

88

0.01

25

0.01

25

0.00

94

0.00

94

0.03

75

0.03

75

-~

Cla

ss

Cla

ss

Max

.

6

3.08

43

3.08

76

3.1

662

3.1

688

3.1

940

3.19

59

3.20

77

3.20

94

3.29

1 2

3.

2938

3.31

90

3.32

09

3.33

27

3.33

44

3.33

43

3.33

76

3.41

62

3.41

88

3.44

40

3.44

59

3.45

77

3.45

94

3.54

1 1

3.

5438

3.56

90

3.57

09

3.58

27

3.58

44

3.58

42

3.58

76

Min

.

7

3.07

34

3.07

94

3.15

75

3.1 6

23

3.1

877

3.

1912

3.20

21

3.20

52

3.28

24

3.28

72

3.31

26

3.31

61

3.32

69

3.33

01

3.32

33

3.32

93

3.40

74

3.41

22

3.43

76

3.44

1 1

3.45

19

3.45

51

3.53

22

3.53

71

3.56

26

3.56

61

3.57

69

3.58

01

3.57

30

3.57

92

Max

.

8

2.95

80

2.96

13

3.1

031

3.1

056

3.1

51

9

3.1

538

3.17

61

3.17

78

3.22

81

3.23

06

3.27

69

3.27

88

3.30

1 1

3.30

28

3.20

80

3.21

13

3.35

30

3.35

56

3.40

1 9

3.40

38

3.42

61

3.42

78

3.47

80

3.48

06

3.52

69

3.52

88

3.55

1 1

3.55

28

3.45

79

3.46

1 3

Min

.

9

2.93

20

2.93

79

3.08

68

3.09

1 6

3.14

05

3.14

40

3.1

667

3.

1 698

3.21

17

3.21

65

3.26

54

3.26

89

3.29

1 5

3.29

47

3.18

18

3.18

78

3.33

67

3.34

1 5

3.39

04

3.39

40

3.41

65

3.41

97

3.46

1 5

3.

4664

3.51

54

3.51

90

3.54

1 5

3.

5447

3.43

1 6

3.

4378

Max

.

15

3.10

17

3.09

82

3.18

01

3.1 7

73

3.20

41

3.20

21

3.21

67

3.21

49

3.30

52

3.30

23

3.32

93

3.32

72

3.34

19

3.34

00

3.35

1 9

3.

3484

3.43

03

3.42

74

3.45

43

3.45

22

3.46

69

3.46

50

3.55

54

3.55

25

3.57

93

3.57

72

3.59

19

3.59

00

3.60

21

3.59

85

Min

.

16

3.08

76

3.08

76

3. I 68

8 3.

1 688

3.1 9

59

3.1 9

59

3.20

94

3.20

94

3.29

38

3.29

38

3.32

09

3.32

09

3.33

44

3.33

44

3.33

76

3.33

76

3.41

88

3.41

88

3.44

59

3.44

59

3.45

94

3.45

94

3.54

38

3.54

38

3.57

09

3.57

09

3.58

44

3.58

44

3.58

76

3.58

76

3 12

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

__

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

28

38

I

J

Ln

0 4

Ln J

Cr 0

J

0

Ln

0- Ln I

3.62

50

3.62

50

3.62

50

3.62

50

3.75

00

3.75

00

(Tab

le 5

con

tinue

s on

nex

t pag

e)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

L

IMIT

ING

DIM

EN

SIO

NS

AN

D T

OLE

RA

NC

ES

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3.69

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3.66

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3.66

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3.68

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3.75

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3.75

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3.79

39

3.79

39

3.81

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3.81

42

3.75

65

3.75

65

3.87

83

3.87

83

3.91

89

3.91

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3.93

92

3.93

92

4.04

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4.04

38

4.06

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4.06

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4.1

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3.64

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3.64

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3.67

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3.69

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3.69

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3.76

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3.76

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3.80

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3.80

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3.82

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3.82

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3.78

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3.89

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3.92

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3.94

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4.07

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4.17

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4.19

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13

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3.79

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3.68

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4.04

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4.04

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3.65

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3.73

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3.85

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3.85

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3.90

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3.90

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3.92

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4.05

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4.05

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4.15

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4

3.74

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3.75

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3.74

81

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83

3.75

00

3.87

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3.87

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3.87

30

3.87

50

3.87

32

3.87

50

3.99

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3.99

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4.00

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32

4.1 2

50

4.24

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4.24

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5

3.73

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3.73

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3.74

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3.85

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3.86

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3.86

36

3.86

38

3.86

56

3.97

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3.97

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3.98

23

3.98

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3.98

66

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4.36

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3.66

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3.69

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3.70

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3.81

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3.82

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3.83

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3.82

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3.90

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3.91

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4.3 1

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3.80

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3.82

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3.82

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3.84

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3.84

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3.85

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3.84

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3.93

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3.95

23

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3.96

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(Tab

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--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

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12

13

14

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16

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6

4.33

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4.33

44

4.44

39

4.44

59

4.45

76

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4.56

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4.57

09

4.58

26

4.58

44

4.69

39

4.69

59

4.70

76

4.70

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4.81

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4.82

09

4.83

26

4.83

44

4.94

39

4.94

59

4.95

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4.95

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5.06

89

5.07

09

5.08

26

5.08

44

5.1

939

5.1

959

5.20

76

5.20

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9

4.29

13

4.29

46

4.39

02

4.39

38

4.41

63

4.41

96

4.51

50

4.51

87

4.54

1 1

4.54

45

4.64

00

4.64

37

4.66

61

4.66

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4.76

50

4.76

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4.79

1 1

4.79

45

4.89

00

4.89

37

4.91

61

4.91

95

5.01

50

5.01

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5.04

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5.04

45

5.14

00

5.14

37

5.16

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10

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4.36

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4.36

56

4.48

66

4.48

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4.48

88

4.49

06

4.61

16

4.61

36

4.61

38

4.61

56

4.73

66

4.73

86

4.73

88

4.74

06

4.86

16

4.86

36

4.86

38

4.86

56

4.98

66

4.98

86

4.98

88

4.99

06

5.1

116

5.1

136

5.1

138

5.1

156

5.23

66

5.23

86

5.23

88

5.24

06

7

4.32

67

4.33

00

4.43

74

4.44

1 0

4.45

1 7

4.

4550

4.56

22

4.56

59

4.57

65

4.57

99

4.68

72

4.69

09

4.70

1 5

4.

7049

4.81

22

4.81

59

4.82

65

4.82

99

4.93

72

4.94

09

4.95

1 5

4.

9549

5.06

22

5.06

59

5.07

65

5.07

99

5.1 8

72

5.1

909

5.20

1 5

5.20

49

8

4.30

1 0

4.30

28

4.40

1 8

4.40

38

4.42

60

4.42

78

4.52

68

4.52

88

4.55

1 0

4.55

28

4.65

1 8

4.

6538

4.67

60

4.67

78

4.77

68

4.77

88

4.80

1 0

4.80

28

4.90

1 8

4.

9038

4.92

60

4.92

78

5.02

68

5.02

88

5.05

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5.05

28

5.1

51

8

5.1

538

5.17

60

5.1 7

78

2

UN

J

3 2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

4

4.37

32

4.37

50

4.49

80

4.50

00

4.49

82

4.50

00

4.62

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4.62

50

4.62

32

4.62

50

4.74

80

4.75

00

4.74

82

4.75

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4.87

30

4.87

50

4.87

32

4.87

50

4.99

80

5.00

00

4.99

82

5.00

00

5.1 2

30

5.12

50

5.1

232

5.

1250

5.24

80

5.25

00

5.24

82

5.25

00

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

2B

38

2B

38

2B

38

28

38

28

3B

28

38

28

3B

28

38

2B

38

28

3B

28

3B

28

3B

28

3B

28

38

2B

3B

4.32

26

4.32

26

4.42

88

4.42

88

4.44

76

4.44

76

4.55

38

4.55

38

4.57

26

4.57

26

4.67

88

4.67

88

4.69

76

4.69

76

4.80

38

4.80

38

4.82

26

4.82

26

4.92

88

4.92

88

4.94

76

4.94

76

5.05

38

5.05

38

5.07

26

5.07

26

5.17

88

5.17

88

5.19

76

5.1

976

4.31

41

4.31

41

4.41

88

4.41

88

4.43

91

4.43

91

4.54

38

4.54

38

4.56

41

4.56

41

4.66

88

4.66

88

4.68

91

4.68

91

4.79

38

4.79

38

4.81

41

4.81

41

4.91

88

4.91

88

4.93

91

4.93

91

5.04

38

5.04

38

5.06

41

5.06

41

5.16

88

5.16

88

5.18

91

5.18

91

4.34

20

4.34

01

4.45

44

4.45

23

4.46

70

4.46

51

4.57

96

4.57

75

4.59

23

4.59

03

4.70

46

4.70

25

4.71

73

4.71

53

4.82

96

4.82

75

4.84

23

4.84

03

4.95

46

4.95

25

4.96

73

4.96

53

5.07

96

5.07

75

5.09

23

5.09

03

5.20

46

5.20

25

5.21

73

5.21

53

4.33

44

4.33

44

4.44

59

4.44

59

4.45

94

4.45

94

4.57

09

4.57

09

4.58

44

4.58

44

4.69

59

4.69

59

4.70

94

4.70

94

4.82

09

4.82

09

4.83

44

4.83

44

4.94

59

4.94

59

4.95

94

4.95

94

5.07

09

5.07

09

5.08

44

5.08

44

5.19

59

5.19

59

5.20

94

5.20

94

4.37

50

4.37

50

4.50

00

4.50

00

4.50

00

4.50

00

4.62

50

4.62

50

4.62

50

4.62

50

4.75

00

4.75

00

4.75

00

4.75

00

4.87

50

4.87

50

4.87

50

4.87

50

5.00

00

5.00

00

5.00

00

5.00

00

5.1 2

50

5.1

250

5.12

50

5.12

50

5.25

00

5.25

00

5.25

00

5.25

00

4.37

50-1

6

4.50

00-1

2

4.50

00-1

6

4.62

50-1

2

4.62

50-1

6

4.75

00-1

2

W 0

4.75

00-1

6

4.87

50-1

2

4.87

50-1

6

5.00

00-1

2

5.00

00-1

6

5.12

50-1

2

5.12

50-1

6

5.25

00-1

2

5.25

00-1

6

UN

J

UN

J

UN

J

UN

J

0

4

Ln 5

a-

UN

J

UN

J 4

0

UN

J 0

Ln

a-

Ln

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

(Tab

le 5 c

ontin

ues

on n

ext p

age)

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

TAB

LE 5

LI

MIT

ING

DIM

EN

SIO

NS

AN

D

TOLE

RA

NC

ES

, UN

J TH

RE

AD

FO

RM

(C

ON

T'D

) -

Cla

ss

3 2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

2A

3A

-

- T

T -

Cla

ss

12

28

3

8

28

38

28

3B

2B

3B

2B

3B

2B

3B

2B

3B

2B

3B

28

36

26

38

2B

38

28

38

__

_

- T

Ext

erna

l Thr

eads

In

tern

al T

hrea

ds

i t

T T

T T

T M

ajor

D

iam

eter

P

itch

Dia

met

er

Min

or

Dia

met

er

Roo

t R

adiu

s M

inor

D

iam

eter

P

itch

Dia

met

er

Maj

or

Dia

. S

erie

s D

esig

na-

tion

2

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

UN

J

Nom

inal

Siz

e an

d Th

read

s pe

r in

.

1

5.37

50-1

2

5.37

50-1

6

5.50

00-1

2

5.50

00-1

6

5.62

50-1

2

5.62

50-1

6

W

C

5.75

00-1

2

5.75

00-1

6

5.87

50-1

2

5.87

50-1

6

6.00

00-1

2

6.00

00-1

6

Min

.

11

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

0.01

25

0.01

25

0.00

94

0.00

94

Max

.

4

5.37

30

5.37

50

5.37

32

5.37

50

5.49

80

5.50

00

5.49

82

5.50

00

5.62

29

5.62

50

5.62

31

5.62

50

5.74

79

5.75

00

5.74

81

5.75

00

5.87

29

5.87

50

5.87

31

5.87

50

5.99

79

6.00

00

5.99

81

6.00

00

Min

.

5 5.

361 6

5.

3636

5.36

38

5.36

56

5.48

66

5.48

86

5.48

88

5.49

06

5.61

15

5.61

36

5.61

37

5.61

56

5.73

65

5.73

86

5.73

87

5.74

06

5.86

1 5

5.

8636

5.86

37

5.86

56

5.98

65

5.98

86

5.98

87

5.99

06

Min

.

9

5.26

50

5.26

87

5.29

1 1

5.

2945

5.39

00

5.39

37

5.41

61

5.41

95

5.51

48

5.51

85

5.54

09

5.54

43

5.63

98

5.64

35

5.66

59

5.66

93

5.76

48

5.76

85

5.79

09

5.79

43

5.88

98

5.89

35

5.91

59

5.91

93

Max

.

10

0.01

50

0.01

50

0.01

13

0.01

13

0.01

50

0.01

50

0.01

13

0.01

13

0.01

50

0.01

50

0.01

13

0.01

13

0.01

50

0.01

50

0.01

13

0.01

13

0.01

50

0.01

50

0.01

13

0.01

13

0.01

50

0.01

50

0.01

13

0.01

13

Max

.

13

5.30

38

5.30

38

5.32

26

5.32

26

5.42

88

5.42

88

5.44

76

5.44

76

5.55

38

5.55

38

5.57

26

5.57

26

5.67

88

5.67

88

5.69

76

5.69

76

5.80

38

5.80

38

5.82

26

5.82

26

5.92

88

5.92

88

5.94

76

5.94

76

Min

.

14

5.29

38

5.29

38

5.31

41

5.31

41

5.41

88

5.41

88

5.43

91

5.43

91

5.54

38

5.54

38

5.56

41

5.56

41

5.66

88

5.66

88

5.68

91

5.68

91

5.79

38

5.79

38

5.81

41

5.81

41

5.91

88

5.91

88

5.93

91

5.93

91

Max

.

15

5.32

96

5.32

75

5.34

23

5.34

03

5.45

46

5.45

25

5.46

73

5.46

53

5.57

99

5.57

76

5.59

25

5.59

05

5.70

49

5.70

26

5.71

75

5.71

55

5.82

99

5.82

76

5.84

25

5.84

05

5.95

49

5.95

26

5.96

75

5.96

55

Min

.

16

5.32

09

5.32

09

5.33

44

5.33

44

5.44

59

5.44

59

5.45

94

5.45

94

5.57

09

5.57

09

5.58

44

5.58

44

5.69

59

5.69

59

5.70

94

5.70

94

5.82

09

5.82

09

5.83

44

5.83

44

5.94

59

5.94

59

5.95

94

5.95

94

Min

.

17

Max

.

6

5.31

89

5.32

09

5.33

26

5.33

44

5.44

39

5.44

59

5.45

76

5.45

94

5.56

88

5.57

09

5.58

25

5.58

44

5.69

38

5.69

59

5.70

75

5.70

94

5.81

88

5.82

09

5.83

25

5.83

44

5.94

38

5.94

59

5.95

75

5.95

94

Min

.

7

5.31

22

5.31

59

5.32

65

5.32

99

5.43

72

5.44

09

5.45

1 5

5.

4549

5.56

1 9

5.

5657

5.57

63

5.57

97

5.68

69

5.69

07

5.70

1 3

5.

7047

5.81

19

5.81

57

5.82

63

5.82

97

5.93

69

5.94

07

5.95

1 3

5.

9547

Max

.

8

5.27

68

5.27

88

5.30

1 0

5.30

28

5.40

1 8

5.

4038

5.42

60

5.42

78

5.52

67

5.52

88

5.55

09

5.55

28

5.65

17

5.65

38

5.67

59

5.67

78

5.77

67

5.77

88

5.80

09

5.80

28

5.90

1 7

5.

9038

5.92

59

5.92

78

5.37

50

5.37

50

5.37

50

5.37

50

5.50

00

5.50

00

5.50

00

5.50

00

5.62

50

5.62

50

5.62

50

5.62

50

5.75

00

5.75

00

5.75

00

5.75

00

5.87

50

5.87

50

5.87

50

5.87

50

6.00

00

6.00

00

6.00

00

6.00

00

Cop

yrig

ht A

SM

E In

tern

atio

nal

Pro

vide

d by

IHS

und

er li

cens

e w

ith A

SM

ED

ocum

ent p

rovi

ded

by IH

S L

icen

see=

Exx

onM

obil/

1890

5001

01,

03/2

3/20

04 2

2:29

:39

MS

T Q

uest

ions

or

com

men

ts a

bout

this

mes

sage

: ple

ase

call

the

Doc

umen

t Pol

icy

Gro

up a

t 303

-397

-229

5.

--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

ASME Bl I .15 75 0757b70 05b5787 Sb0

ASME B1.15-1995 UNIFIED INCH SCREW THREADS

(UNJ THREAD FORM)

TABLE 6 ALLOWABLE VARIATIONS IN LEAD AND EQUIVALENT CHANGE IN FUNCTIONAL DIAMETER, UNJ THREAD FORM

Nominal Size and Threads

per in.

1

0.0600-80

0.0730-64

0.0730-72

0.0860-56

0.0860-64

0.0990-48

0.0990-56

0.1 120-40

0.1 120-48

0.1 250-40

0.1250-44

0.1 380-32

0.1380-40

0.1640-32

0.1 640-36

0.1 900-24

0.1 900-32

0.21 60-24

0.21 60-28

0.21 60-32

0.2500-20

Series Designation

2

UNJF

UNJC

UNJF

UNJC

UNJF

UNJC

UNJF

UNJC

UNJF

UNJC

UNJF

UNJC

UNJF

UNJC

UNJF

UNJC

UNJF

UNJC

UNJF

UNJEF

UNJC

Class

3

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

External

Allowable Variation in Lead, in. *

4

0.0005 0.0004

0.0006 0.0004

0.0005 0.0004

0.0006 0.0005

0.0006 0.0004

0.0007 0.0005

0.0006 0.0005

0.0007 0.0005

0.0007 0.0005

0.0008 0.0005

0.0007 0.0005

0.0008 0.0006

0.0008 0.0006

0.0008 0.0006

0.0008 0.0006

0.001 0 0.0007

0.0009 0.0007

0.001 0 0.0008

0.0009 0.0007

0.0009 0.0007

0.001 1 0.0008

3

Equivalent Change in Functional

Xameter, in. t

5

0.00090 0.00065

0.001 00 0.00075

0.00095 0.00070

0.001 05 0.00080

0.00100 0.00075

0.001 15 0.00085

0.001 10 0.00080

0.00125 0.00095

0.00120 0.00090

0.001 30 0.00095

0.00125 0.00095

0.001 40 0.001 05

0.001 30 0.001 00

0.001 45 0.001 10

0.001 40 0.001 05

0.00165 0.00125

0.001 50 0.001 15

0.001 70 0.001 30

0.00160 0.001 20

0.001 55 0.001 20

0.001 85 0.00140

2

T -

Class

6

2B 3B

28 38

28 38

28 38

28 38

28 38

28 38

2B 3B

28 38

28 38

28 38

28 38

28 38

2B 3B

28 3B

2B 38

28 3B

28 38

28 38

28 3B

28 38

-

-

-

Internal

Allowable Variation in lead, in. *

7

0.0007 0.0005

0.0008 0.0005

0.0007 0.0005

0.0008 0.0006

0.0008 0.0006

0.0009 0.0006

0.0008 0.0006

0.0010 0.0007

0.0009 0.0007

0.001 0 0.0007

0.0009 0.0007

0.001 1 0.0008

0.001 0 0.0007

0.001 1 0.0008

0.001 0 0.0008

0.001 2 0.0009

0.001 1 0.0008

0.0013 0.0010

0.0012 0.0009

0.001 2 0.0009

0.001 4 0.001 0


Diameter, in. - 8

0.001 15 0.00085

0.001 30 0.00095

0.00125 0.00095

0.001 40 0.001 05

0.001 35 0.001 00

0.001 50 0.001 10

0.001 40 0.001 05

0.00165 0.00120

0.00155 0.001 15

0.001 65 0.001 25

0.00160 0.00120

0.001 85 0.001 35

0.00170 0.00125

0.00190 0.001 40

0.001 80 0.00135

0.0021 5 0.001 60

0.00195 0.001 45

0.00220 0.001 65

0.00210 0.001 55

0.00205 0.001 55

0.00245 0.00180




--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---


TABLE 6 ALLOWABLE VARIATIONS IN LEAD AND EQUIVALENT CHANGE IN FUNCTIONAL DIAMETER, UNJ THREAD FORM (CONT'D)

ASME 81.15-1995


per in.

1

0.2500-28

0.2500-32

0.31 25-1 8

0.31 25-24

0.31 25-32

0.3750-1 6

0.3750-24

0.3750-32

0.4375-14

0.4375-16

0.4375-20

0.4375-28

0.5000-13

0.5000-16

0.5000-20

0.5000-28

0.5625-1 2

0.5625-16

0.5625-1 8

0.5625-24

0.6250-1 1

Series Iesignation

2

UNJF

UNJEF

UNJC

UNJF

UNJEF

UNJC

UNJF

UNJEF

UNJC

UNJ

UNJF

UNJEF

UNJC

UNJ

UNJF

UNJEF

UNJC

UNJ

UNJF

UNJEF

UNJC

r

Class

3

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

External

Allowable Variation in Lead, in. +

4

0.001 0 0.0007

0.0009 0.0007

0.001 2 0.0009

0.001 1 0.0008

0.0009 0.0007

0.0013 0.001 0

0.001 1 0.0008

0.001 0 0.0007

0.0014 0.001 0

0.0013 0.0010

0.001 2 0.0009

0.001 0 0.0008

0.001 4 0.001 1

0.001 4 0.001 0

0.001 2 0.0009

0.001 1 0.0008

0.001 5 0.001 1

0.001 4 0.001 0

0.001 3 0.001 0

0.001 1 0.0008

0.0016 0.001 2

T Equivalent Change in Functional

Iiameter, in. + 5

0.001 65 0.00125

0.00160 0.00120

0.00200 0.001 50

0.00185 0.00135

0.001 60 0.001 20

0.00220 0.001 65

0.001 90 0.00145

0.00170 0.001 25

0.00235 0.001 75

0.00230 0.00170

0.0021 0 0.00155

0.00180 0.00135

0.00250 0.00185

0.00235 0.00175

0.002 1 5 0.001 60

0.001 85 0.001 40

0.00260 0.001 95

0.00235 0.00175

0.00225 0.001 70

0.001 95 0.001 45

0.00275 0.00205

13

___

Class

6

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

-

-

-

Internal


7

0.001 2 0.0009

0.001 2 0.0009

0.001 5 0.001 1

0.001 4 0.0010

0.001 2 0.0009

0.0016 0.0012

0.0014 0.001 1

0.0013 0.001 0

0.0018 0.0013

0.001 7 0.001 3

0.001 6 0.001 2

0.001 3 0.001 0

0.001 9 0.0014

0.001 8 0.001 3

0.001 6 0.001 2

0.0014 0.0010

0.0020 0.001 5

0.001 8 0.001 3

0.001 7 0.0013

0.001 5 0.001 1

0.002 1 0.001 6


liameter, in. -

a 0.0021 5 0.001 60

0.002 10 0.001 55

0.00265 0.001 95

0.00240 0.001 80

0.0021 0 0.001 55

0.00285 0.0021 5

0.00245 0.00185

0.00220 0.001 65

0.00305 0.00230

0.00295 0.00225

0.00270 0.00205

0.00230 0.00175

0.00325 0.00240

0.00305 0.00230

0.00280 0.0021 0

0.00240 0.00180

0.00340 0.00255

0.00305 0.00230

0.00295 0.00220

0.00255 0.001 90

0.00360 0.00270

(Table 6 continues on next pageJ



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

UNIFIED INCH SCREW THREADS ASME 81.15-1995 (UNJ THREAD FORM)

TABLE 6 ALLOWABLE VARIATIONS IN LEAD AND EQUIVALENT CHANGE IN FUNCTIONAL DIAMETER, UNJ THREAD FORM (CONT’D)


per in.

1

0.6250-1 2

0.6250-1 6

0.6250-18

0.6250-24

0.6875-12

0.6875-16

0.6875-24

0.7500-1 0

0.7500-1 2

0.7500-16

0.7500-20

0.81 25-1 2

0.81 25-1 6

0.8125-20

0.8750-9

0.8750-1 2

0.8750-14

0.8750-1 6

0.8750-20

0.9375-1 2

0.9375-1 6

T

Series Iesignation

2

UNJ

UNJ

UNJF

UNJEF

UNJ

UNJ

UNJEF

UNJC

UNJ

UNJF

UNJEF

UNJ

UNJ

UNJEF

UNJC

UNJ

UNJF

UNJ

UNJEF

UNJ

UNJ

Class

3

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

External

Allowable Variation in Lead, in. f

4

0.0016 0.001 2

0.0014 0.0010

0.0014 0.0010

0.001 2 0.0009

0.001 6 0.001 2

0.001 4 0.001 0

0.001 2 0.0009

0.001 7 0.001 3

0.001 6 0.001 2

0.001 4 0.001 1

0.001 3 0.001 0

0.001 6 0.001 2

0.001 4 0.0010

0.0013 0.001 0

0.0018 0.00 14

0.0016 0.001 2

0.0016 0.001 2

0.001 4 0.001 0

0.001 3 0.0010

0.001 6 0.001 2

0.001 4 0.001 1

3

T


Iiameter, in. + 5

0.00270 0.00205

0.00240 0.00180

0.00235 0.00175

0.00200 0.001 50

0.00270 0.00205

0.00240 0.001 80

0.00200 0.001 50

0.00295 0.00220

0.00275 0.00205

0.00250 0.001 90

0.00220 0.001 65

0.00275 0.00205

0.00245 0.001 80

0.00220 0.00165

0.00315 0.00235

0.00275 0.00205

0.00270 0.00205

0.00245 0.001 80

0.00220 0.001 65

0.00285 0.0021 0

0.00250 0.00185

4

Class

6

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

2B 3B

28 38

28 38

28 38

Internal


J

0.0020 0.001 5

0.001 8 0.001 3

0.001 7 0.001 3

0.001 5 0.001 1

0.0020 0.001 5

0.001 8 0.001 3

0.001 5 0.001 1

0.0022 0.001 6

0.0021 0.001 6

0.001 9 0.001 4

0.001 6 0.001 2

0.0021 0.001 6

0.001 8 0.0014

0.001 6 0.001 2

0.0024 0.0018

0.0021 0.001 6

0.0020 0.001 5

0.001 8 0.001 4

0.001 6 0.001 2

0.0021 0.001 6

0.001 9 0.001 4


Iiameter, in. -

8

0.00355 0.00265

0.0031 0 0.00230

0.00300 0.00225

0.00260 0.001 95

0.00355 0.00265

0.0031 0 0.00230

0.00260 0.00195

0.00385 0.00285

0.00360 0.00270

0.00325 0.00245

0.00285 0.0021 5

0.00360 0.00270

0.0031 5 0.00235

0.00285 0.0021 5

0.0041 0 0.00305

0.00360 0.00270

0.00350 0.00265

0.0031 5 0.00235

0.00285 0.0021 5

0.00370 0.00275

0.00325 0.00245




--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

ASME E L - L 5 95 0759b70 0565790 0 5 5 =



ASME 81.15-1995


per in.

1

0.9375-20

1 .OOOO-8

1 .oooo-12

1 .OOOO-16

1.0000-20

1.0625-8

1.0625-1 2

1.0625-1 6

1.0625-18

1 .I 250-7

1 .I 250-8

1 .I 250-1 2

1.1250-16

1.1250-18

1.1875-8

1.1875-12

1.1875-16

1.1875-18

1.2500-7

1.2500-8

1.2500-1 2

Series Iesignation

2

UNJEF

UNJC

UNJF

UNJ

UNJEF

UNJ

UNJ

UNJ

UNJEF

UNJC

UNJ

UNJF

UNJ

UNJEF

UNJ

UNJ

UNJ

UNJEF

UNJC

UNJ

UNJF

T

Class

3 2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

External


4

0.001 3 0.001 0

0.0020 0.0015

0.001 7 0.0013

0.0014 0.001 1

0.0013 0.001 0

0.0020 0.001 5

0.001 6 0.001 2

0.001 4 0.001 1

0.001 4 0.0010

0.0021 0.001 6

0.0020 0.001 5

0.001 7 0.001 3

0.001 4 0.001 1

0.001 4 0.001 0

0.0020 0.001 5

0.001 7 0.001 2

0.001 5 0.001 1

0.0014 0.001 0

0.0021 0.001 6

0.0020 0.001 5

0.001 8 0.001 3

r Equivalent Change in Functional

biameter, in. + 5

0.00225 0.001 70

0.00340 0.00255

0.00295 0.00220

0.00250 0.00185

0.00225 0.00170

0.00340 0.00255

0.00285 0.0021 0

0.00250 0.001 85

0.00235 0.001 80

0.00360 0.00270

0.00345 0.00260

0.00300 0.00225

0.00250 0.001 85

0.00235 0.001 80

0.00350 0.00260

0.00290 0.0021 5

0.00255 0.00190

0.00245 0.001 80

0.00370 0.00275

0.00350 0.00265

0.0031 0 0.00230

Class

6

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

20 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 3B

Internal


7

0.0017 0.0013

0.0025 0.001 9

0.0022 0.001 6

0.001 9 0.001 4

0.001 7 0.0013

0.0026 0.001 9

0.0021 0.0016

0.001 9 0.001 4

0.0018 0.0013

0.0027 0.0020

0.0026 0.001 9

0.0023 0.0017

0.001 9 0.001 4

0.001 8 0.001 3

0.0026 0.0020

0.0022 0.001 6

0.001 9 0.001 4

0.001 8 0.001 4

0.0028 0.0021

0.0027 0.0020

0.0023 0.001 7


liameter, in. - 8

0.00295 0.00220

0.00440 0.00330

0.00380 0.00285

0.00325 0.00245

0.00295 0.00220

0.00445 0.00335

0.00370 0.00275

0.00325 0.00245

0.0031 0 0.00230

0.00470 0.00355

0.00450 0.00335

0.00390 0.00295

0.00325 0.00245

0.0031 0 0.00230

0.00455 0.00340

0.00375 0.00280

0.00330 0.00250

0.0031 5 0.00235

0.00480 0.00360

0.00460 0.00345

0.00400 0.00300


35



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

ASME B I - 1 5 75 = 0759670 0565771 T91 =


(UNJ THREAD FORM)



per in.

1

1.2500-1 6

1.2500-1 8

1.31 25-8

1.31 25-1 2

1.3125-16

1.3125-18

1.3750-6

1.3750-8

1.3750-1 2

1.3750-1 6

1.3750-1 8

1.4375-8

1.4375-1 2

1.4375-1 6

1.4375-1 8

1.5000-6

1.5000-8 '

1.5000-1 2

1.5000-1 6

1.5000-18

1.5625-8

Series 3esignation

2

UNJ

UNJEF

UNJ

UNJ

UNJ

UNJEF

UNJC

UNJ

UNJF

UNJ

UNJEF

UNJ

UNJ

UNJ

UNJEF

UNJC

UNJ

UNJF

UNJ

UNJEF

UNJ

T

Class

3

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

External

Allowable Variation in Lead, in.

4

0.001 5 0.001 1

0.001 4 0.001 0

0.0020 0.001 5

0.001 7 0.0012

0.00 15 0.001 1

0.001 4 0.001 0

0.0023 0.001 7

0.0021 0.001 6

0.001 8 0.0014

0.001 5 0.001 1

0.0014 0.001 0

0.0021 0.001 6

0.001 7 0.0013

0.001 5 0.001 1

0.001 4 0.001 1

0.0023 0.001 8

0.0021 0.001 6

0.0018 0.0014

0.001 5 0.001 1

0.001 4 0.001 1

0.0021 0.001 6


Iiameter, in. t

5

0.00255 0.00190

0.00245 0.001 80

0.00355 0.00265

0.00290 0.0021 5

0.00255 0.001 90

0.00245 0.001 80

0.00400 0.00300

0.00360 0.00270

0.0031 5 0.00235

0.00255 0.00190

0.00245 0.00 180

0.00360 0.00270

0.00295 0.00220

0.00260 0.00195

0.00250 0.001 85

0.00405 0.00305

0.00365 0.00275

0.00320 0.00240

0.00260 '

0.001 95

0.00250 0.00185

0.00370 0.00275

T

Class

6

28 38

28 38

28 38

28 38

28 38

28 38

28 3B

2B 3B

2B 38

2B 3B

28 38

2B 3B

2B 38

28 38

28 38

28 38

28 38

28 3B

28 38

28 38

28 38 -

Internal


7

0.001 9 0.001 4

0.001 8 0.001 4

0.0027 0.0020

0.0022 0.0016

0.001 9 0.001 4

0.001 8 0.001 4

0.0030 0.0023

0.0027 0.0020

0.0024 0.001 8

0.001 9 0.001 4

0.0018 0.001 4

0.0027 0.0020

0.0022 0.0016

0.0020 0.001 5

0.001 9 0.001 4

0.0030 0.0023

0.0027 0.0020

0.0024 0.001 8

0.0020 0.001 5

0.0019 0.0014

0.0028 0.0021


Xameter, in. - 8

0.00330 0.00250

0.0031 5 0.00235

0.00460 0.00345

0.00375 0.00280

0.00330 0.00250

0.0031 5 0.00235

0.00520 0.00390

0.00465 0.00350

0.0041 0 0.00305

0.00330 0.00250

0.00315 0.00235

0.00470 0.00355

0.00380 0.00285

0.00340 0.00255

0.00325 0.00240

0.00525 0.00395

0.00475 0.00355

0.0041 5 0.0031 5

0.00340 0.00255

0.00325 0.00240

0.00480 0.00360


36



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

ASME B L - L 5 95 075'3670 05b5792 928



ASME 61.15-1995


per in.

1

1.5625-12

1.5625-16

1.5625-18

1.6250-8

1.6250-1 2

1.6250-1 6

1.6250-1 8

1.6875-8

1.6875-1 2

1.6875-1 6

1.6875-1 8

1.7500-5

1.7500-8

1.7500-1 2

1.7500-1 6

1.81 25-8

1.81 25-1 2

1.81 25-1 6

1.8750-8

1.8750-1 2

1.8750-1 6

Series )esignatiov

2

UNJ

UNJ

UNJEF

UNJ

UNJ

UNJ

UNJEF

UNJ

UNJ

UNJ

UNJEF

UNJC

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

T -

Class

3

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

~

-

~

External


4

0.001 7 0.001 3

0.001 5 0.001 1

0.001 4 0.001 1

0.0021 0.001 6

0.0017 0.001 3

0.001 5 0.001 1

0.001 4 0.001 1

0.0022 0.001 6

0.0017 0.0013

0.001 5 0.0012

0.001 5 0.001 1

0.0026 0.001 9

0.0022 0.001 6

0.001 7 0.001 3

0.001 5 0.001 2

0.0022 0.001 6

0.001 7 0.001 3

0.0015 0.001 2

0.0022 0.001 6

0.0017 0.0013

0.0015 0.001 2

-r Equivalent Change in Functional

liarneter, in. + 5

0.00295 0.00220

0.00260 0.001 95

0.00250 0.001 85

0.00370 0.00280

0.00295 0.00220

0.00260 0.001 95

0.00250 0.001 85

0.00375 0.00280

0.00300 0.00225

0.00265 0.00200

0.00255 0.001 90

0.00445 0.00335

0.00375 0.00285

0.00300 0.00225

0.00265 0.00200

0.00380 0.00285

0.00300 0.00225

0.00265 0.00200

0.00385 0.00285

0.00300 0.00225

0.00265 0.00200

Class

6

28 38

2B 38

2B 38

2B 36

28 3B

28 38

20 38

28 38

28 38

26 38

26 36

26 36

28 36

26 36

26 36

28 38

26 36

2B 36

26 38

26 36

26 36

Internal


7

0.0022 0.001 6

0.0020 0.001 5

0.001 9 0.0014

0.0028 0.0021

0.0022 0.001 6

0.0020 0.001 5

0.001 9 0.001 4

0.0028 0.0021

0.0023 0.001 7

0.0020 0.001 5

0.001 9 0.001 4

0.0033 0.0025

0.0028 0.0021

0.0023 0.001 7

0.0020 0.001 5

0.0029 0.0021

0.0023 0.001 7

0.0020 0.001 5

0.0029 0.0022

0.0023 0.001 7

0.0020 0.001 5


biarneter, in. - 8

0.00380 0.00285

0.00340 0.00255

0.00325 0.00240

0.00485 0.00360

0.00380 0.00285

0.00340 0.00255

0.00325 0.00240

0.00485 0.00365

0.00390 0.00290

0.00345 0.00260

0.00330 0.00245

0.00580 0.00435

0.00490 0.00370

0.00390 0.00290

0.00345 0.00260

0.00495 0.00370

0.00390 0.00290

0.00345 0.00260

0.00500 0.00375

0.00390 0.00290

0.00345 0.00260

(Table 6 continues on next pageJ

37



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

ASME BL.15 95 0759670 0565793 864


(UNJ THREAD FORM)



per in.

1

1.9375-8

1.9375-1 2

1.9375-1 6

2.0000-4.5

2.0000-8

2.0000-1 2

2.0000-1 6

2.1 250-8

2.1250-12

2.1250-16

2.2500-4.5

2.2500-8

2.2500-1 2

2.2500-16

2.3750-8

2.3750-12

2.3750-16

2.5000-4

2.5000-8

2.5000-1 2

2.5000-16

Series Designation

2

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

UNJ

T

Class

3 2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

External


4

0.0022 0.001 7

0.001 8 0.001 3

0.001 6 0.0012

0.0027 0.0020

0.0023 0.00 17

0.0018 0.0013

0.0016 0.001 2

0.0023 0.001 7

0.001 8 0.0013

0.001 6 0.001 2

0.0028 0.0021

0.0023 0.0017

0.0018 0.001 3

0.001 6 0.001 2

0.0023 0.001 7

0.001 8 0.001 3

0.0016 0.001 2

0.0030 0.0023

0.0024 0.001 8

0.001 8 0.001 3

0.001 6 0.001 2


Xarneter, in. + 5

0.00385 0.00290

0.00305 0.00225

0.00270 0.00200

0.00475 0.00355

0.00390 0.00290

0.00305 0.00225

0.00270 0.00200

0.00395 0.00295

0.00305 0.00225

0.00270 0.00200

0.00485 0.00365

0.00400 0.00300

0.00305 0.00225

0.00270 0.00200

0.00405 0.00300

0.0031 0 0.00230

0.00275 0.00205

0.00520 0.00390

0.0041 0 0.00305

0.0031 0 0.00230

0.00275 0.00205

-r

Class

6

28 38

2B 38

2B 3B

28 38

28 38

28 38

28 38

2B 38

28 38

28 3B

28 38

28 38

28 38

28 38

28 3B

28 38

28 38

2B 38

2B 38

28 38

28 38

Internal


7

0.0029 0.0022

0.0023 0.001 7

0.0020 0.001 5

0.0036 0.0027

0.0029 0.0022

0.0023 0.001 7

0.0020 0.001 5

0.0029 0.0022

0.0023 0.001 7

0.0020 0.001 5

0.0036 0.0027

0.0030 0.0023

0.0023 0.001 7

0.0020 0.001 5

0.0030 0.0023

0.0023 0.001 7

0.0021 0.001 6

0.0039 0.0029

0.0031 0.0023

0.0023 0.001 7

0.0021 0.0016


Diameter, in. - 8

0.00500 0.00375

0.00395 0.00295

0.00350 0.00260

0.00620 0.00465

0.00505 0.00380

0.00395 0.00295

0.00350 0.00260

0.0051 0 0.00385

0.00395 0.00295

0.00350 0.00260

0.00630 0.00475

0.00520 0.00390

0.00395 0.00295

0.00350 0.00260

0.00525 0.00395

0.00405 0.00300

0.00360 0.00270

0.00675 0.00505

0.00530 0.00400

0.00405 0.00300

0.00360 0.00270

(Table 6 continues on next page) 38



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---

ASME BI-15 95 m 0759b70 0565794 7T0


TABLE 6 ALLOWABLE VARIATIONS IN LEAD AND EQUIVALENT CHANGE IN FUNCTIONAL DIAMETER, UNJ THREAD FORM (CONT’D)


per in.

1

2.6250-8

2.6250-12

2.6250-1 6

2.7500-4

2.7500-8

2.7500-12

2.7500-16

2.8750-8

2.8750-12

2.8750-16

3.0000-4

3.0000-8

3.0000-12

3.0000-16

3.1250-8

3.1250-12

3.1250-16

3.2500-4

3.2500-8

3.2500-12

Series )esignation

2

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

T External

Class

3

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A


4

0.0024 0.0018

0.0018 0.0013

0.001 6 0.001 2

0.0030 0.0023

0.0024 0.001 8

0.001 8 0.001 3

0.001 6 0.001 2

0.0024 0.001 8

0.001 8 0.001 4

0.0016 0.001 2

0.0031 0.0023

0.0025 0.001 8

0.001 8 0.001 4

0.001 6 0.001 2

0.0025 0.001 8

0.001 8 0.0014

0.0016 0.001 2

0.0031 0.0024

0.0025 0.001 9

0.001 8 0.001 4

r Equivalent Change in Functional

Iiameter, in. + 5

0.0041 0 0.0031 0

0.00310 0.00230

0.00275 0.00205

0.00525 0.00395

0.0041 5 0.0031 5

0.0031 0 0.00230

0.00275 0.00205

0.00420 0.0031 5

0.0031 5 0.00235

0.00280 0.0021 0

0.00535 0.00400

0.00425 0.00320

0.0031 5 0.00235

0.00280 0.0021 0

0.00430 0.00320

0.0031 5 0.00235

0.00280 0.0021 0

0.00545 0.0041 0

0.00435 0.00325

0.0031 5 0.00235

-

Class

6

2B 38

2B 3B

2B 38

28 3B

28 38

28 38

28 38

28 38

28 38

28 3B

2B 3B

28 38

28 38

2B 38

28 3B

2B 38

28 38

2B 38

28 38

28 38

-

-

-

Internal


7

0.0031 0.0023

0.0023 0.001 7

0.0021 0.001 6

0.0040 0.0030

0.0031 0.0023

0.0023 0.001 7

0.0021 0.001 6

0.0032 0.0024

0.0024 0.0018

0.0021 0.001 6

0.0040 0.0030

0.0032 0.0024

0.0024 0.001 8

0.0021 0.0016

0.0032 0.0024

0.0024 0.001 8

0.0021 0.001 6

0.0041 0.0031

0.0033 0.0025

0.0024 0.001 8


liameter, in. - 8

0.00535 0.00400

0.00405 0.00300

0.00360 0.00270

0.00685 0.0051 5

0.00540 0.00405

0.00405 0.00300

0.00360 0.00270

0.00550 0.0041 0

0.0041 0 0.0031 0

0.00365 0.00275

0.00695 0.00520

0.00555 0.00415

0.0041 0 0.0031 0

0.00365 0.00275

0.00560 0.00420

0.00410 0.00310

0.00365 0.00275

0.00705 0.00530

0.00565 0.00425

0.0041 0 0.0031 0


39



--`````,`,,```,,``,`,`,```,`,,-`-`,,`,,`,`,,`---


TABLE 6 ALLOWABLE VARIATIONS IN LEAD AND EOUIVALENT CHANGE IN FUNCTIONAL DIAMETER, UNJ THREAD FORM (CONT'D)


per in.

1

3.2500-16

3.3750-8

3.3750-12

3.3750-1 6

3.5000-4

3.5000-8

3.5000-1 2

3.5000-1 6

3.6250-8

3.6250-1 2

3.6250-1 6

3.7500-4

3.7500-8

3.7500-1 2

3.7500-16

3.8750-8

3.8750-1 2

3.8750-16

4.0000-4

4.0000-8

4.0000-1 2

Series Iesignation

2

UNJ

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJC

UNJ

UNJ

Class

3

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

Externa


4

0.001 6 0.0012

0.0025 0.00 19

0.001 8 0.001 4

0.001 7 0.001 2

0.0032 0.0024

0.0025 0.001 9

0.0018 0.0014

0.0017 0.001 2

0.0026 0.001 9

0.0018 0.0014

0.0017 0.0012

0.0032 0.0024

0.0026 0.0019

0.001 8 0.001 4

0.001 7 0.001 2

0.0026 0.0020

0.00 19 0.001 4

0.001 7 0.001 3

0.0033 0.0025

0.0026 0.0020

0.001 9 0.001 4


biameter, in. -I

5

0.00280 0.0021 0

0.00440 0.00330

0.00320 0.00240

0.00290 0.0021 5

0.00550 0.0041 5

0.00440 0.00330

0.00320 0.00240

0.00290 0.0021 5

0.00445 0.00335

0.00320 0.00240

0.00290 0.0021 5

0.00560 0.00420

0.00450 0.00335

0.00320 0.00240

0.00290 0.0021 5

0.00455 0.00340

0.00325 0.00245

0.00295 0.00220

0.00565 0.00425

0.00455 0.00340

0.00325 0.00245

Class

6

28 38

28 38

28 38

28 38

28 38

2B 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

28 38

2B 38

28 3B

28 38

28 38

28 38

28 38

Internal

Allowable Variation in Lead, in. =t

7

0.0021 0.001 6

0.0033 0.0025

0.0024 0.001 8

0.0022 0.001 6

0.0041 0.0031

0.0033 0.0025

0.0024 0.001 8

0.0022 0.001 6

0.0033 0.0025

0.0024 0.0018

0.0022 0.001 6

0.0042 0.0031

0.0034 0.0025

0.0024 0.0018

0.0022 0.001 6

0.0034 0.0025

0.0025 0.001 8

0.0022 0.0016

0.0042 0.0032

0.0034 0.0026

0.0025 0.001 8


Xameter, in. - 8

0.00365 0.00275

0.00570 0.00425

0.00420 0.0031 5

0.00375 0.00280

0.0071 5 0.00540

0.00575 0.00430

0.00420 0.0031 5

0.00375 0.00280

0.00580 0.00435

0.00420 0.0031 5

0.00375 0.00280

0.00725 0.00545

0.00585 0.00440

0.00420 0.0031 5

0.00375 0.00280

0.00590 0.00440

0.00425 0.00320

0.00380 0.00285

0.00735 0.00555

0.00595 0.00445

0.00425 0.00320


40



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ASME 81-15 95 m 0757670 0565796 573




per in.

1

4.0000-16

4.1250-12

4.1250-16

4.2500-1 2

4.2500-16

4.3750-1 2

4.3750-16

4.5000-1 2

4.5000-1 6

4.6250-12

4.6250-16

4.7500-12

4.7500-16

4.8750-12

4.8750-16

5.0000-1 2

5.0000-1 6

5.1250-12

5.1250-16

5.2500-1 2

5.2500-16

Series Iesignation

2

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

-r

Class

3 2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

External

Allowable Variation in Lead. in. f

4

0.001 7 0.001 3

0.001 9 0.001 4

0.001 7 0.001 3

0.0019 0.0014

0.0017 0.0013

0.001 9 0.0014

0.0017 0.001 3

0.001 9 0.001 4

0.001 7 0.001 3

0.001 9 0.001 4

0.001 8 0.001 3

0.001 9 0.001 4

0.001 8 0.001 3

0.0019 0.0014

0.0018 0.001 3

0.001 9 0.001 4

0.0018 0.0013

0.0019 0.0014

0.001 8 0.001 3

0.001 9 0.0014

0.001 8 0.001 3


biameter, in. + 5

0.00295 0.00220

0.00325 0.00245

0.00295 0.00220

0.00325 0.00245

0.00295 0.00220

0.00325 0.00245

0.00295 0.00220

0.00325 0.00245

0.00295 0.00220

0.00335 0.00250

0.00305 0.00225

0.00335 0.00250

0.00305 0.00225

0.00335 0.00250

0.00305 0.00225

0.00335 0.00250

0.00305 0.00225

0.00335 0.00250

0.00305 0.00225

0.00335 0.00250

0.00305 0.00225

l-

Class

6

28 38

28 38

28 38

2B 38

2B 3B

2B 3B

28 36

28 38

28 36

2B 3B

28 38

26 3B

2B 3B

2B 38

28 38

28 3B

28 3B

28 3B

2B 36

2B 3B

28 3B

Internal


7

0.0022 0.001 6

0.0025 0.001 8

0.0022 0.001 6

0.0025 0.0018

0.0022 0.001 6

0.0025 0.001 8

0.0022 0.0016

0.0025 0.001 8

0.0022 0.001 6

0.0025 0.001 9

0.0023 0.001 7

0.0025 0.001 9

0.0023 0.0017

0.0025 0.0019

0.0023 0.001 7

0.0025 0.001 9

0.0023 0.001 7

0.0025 0,001 9

0.0023 0.001 7

0.0025 0.001 9

0.0023 0.001 7


liameter, in. -

8

0.00380 0.00285

0.00425 0.00320

0.00380 0.00285

0.00425 0.00320

0.00380 0.00285

0.00425 0.00320

0.00380 0.00285

0.00425 0.00320

0.00380 0.00285

0.00435 0.00330

0.00395 0.00295

0.00435 0.00330

0.00395 0.00295

0.00435 0.00330

0.00395 0.00295

0.00435 0.00330

0.00395 0.00295

0.00435 0.00330

0.00395 0.00295

0.00435 0.00330

0.00395 0.00295


41



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per in.

1

5.3750-1 2

5.3750-1 6

5.5000-12

5.5000-16

5.6250-1 2

5.6250-1 6

5.7500-1 2

5.7500-16

5.8750-12

5.8750-16

6.0000-1 2

6.0000-1 6

Series )esignation

2

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

UNJ

Class

3 2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

2A 3A

External


4

0.001 9 0.0014

0.001 8 0.001 3

0.001 9 0.001 4

0.001 8 0.001 3

0.0020 0.001 5

0.001 8 0.001 4

0.0020 0.001 5

0.001 8 0.001 4

0.0020 0.001 5

0.0018 0.001 4

0.0020 0.001 5

0.0018 0.0014


biameter, in. + 5

0.00335 0.00250

0.00305 0.00225

0.00335 0.00250

0.00305 0.00225

0.00345 0.00260

0.00310 0.00235

0.00345 0.00260

0.0031 0 0.00235

0.00345 0.00260

0.0031 0 0.00235

0.00345 0.00260

0.00310 0.00235

Class

6

28 38

28 38

28 38

2B 3B

28 38

28 3B

2B 38

28 38

28 38

28 38

28 38

28 38

Internal


7

0.0025 0.001 9

0.0023 0.001 7

0.0025 0.001 9

0.0023 0.001 7

0.0026 0.001 9

0.0023 0.001 8

0.0026 0.0019

0.0023 0.001 8

0.0026 0.001 9

0.0023 0.0018

0.0026 0.001 9

0.0023 0.001 8


biameter, in. -

8

0.00435 0.00330

0.00395 0.00295

0.00435 0.00330

0.00395 0.00295

0.00450 0.00335

0.00405 0.00305

0.00450 0.00335

0.00405 0.00305

0.00450 0.00335

0.00405 0.00305

0.00450 0.00335

0.00405 0.00305

42



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TABLE 7 ALLOWABLE VARIATIONS IN 30 deg BASIC HALF-ANGLE OF SCREW THREADS

ASME 61.15-1995

External and Internal Threads ~ ~~ ~ ~~~

Allowable Variation in Half-Angle of Thread

Threads Der in. Min.

80 72 64 56

48 44 40 36

32 28 27 24

2 05 2 00 1 50 1 45

1 40 1 35 1 35 1 30

1 30 1 20 1 20 1 15

20 1 10 18 1 05 16 1 00 14 0 55

13 0 55 12 0 50 1 I lk 0 50 11 0 50

10 0 50 9 0 45 8 0 45 7 0 45

6 0 40 5 0 40 4’k 0 40 4 0 40

43



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ASME Bl1.15 95 H 0759670 05b5799 282


SECTION 5 DIMENSIONAL ACCOMMODATION OF COATINGS AND PLATINGS

The general rules for calculation of coating allowance are defined in Appendix C. Restrictions in paras. 5.1 through 5.5 also apply.

5.1 Coated External Threads - Class 3A

Coated or plated external threads with a pitch diameter tolerance of 0.0035 in. or less may have the minimum pitch diameter specified in Table 5 reduced by not more than 0.0010 in. The major and minor diameter limits specified in Table 5 may be reduced by not more than 0.0005 in. When the pitch diameter tolerance exceeds 0.0035 in., the minimum pitch diameter may be reduced by 0.3 times the pitch diameter tolerance, but this reduction shall not exceed 0.0015 in. The major and minor diameter limits may be reduced by not more than 0.0008 in. The material limits for coated external threads shall be as specified herein. All thread elements shall be within the size limits specified in Table 5.

5.2 Coating Threads With Dry Film Lubricant

Threads to be coated with a dry film lubricant may have the standard coating allowance applied as spec-

ified in paras. 5.1 and 5.4. If the standard coating allowance is utilized, the threads shall conform to the specified limits of size after coating. If another coating is applied before dry film lubricant, no allowance shall be allowed to accommodate the dry film lubricant, and inspection should be accomplished before coating.

5.3 Coated External Threads - Class 2A

The external thread material limits may not be reduced beyond the minimum material limits to accommodate coating. After coating, the threads shall be no larger than Class 3A material limits specified in Table 5 .

5.4 Coated Internal Threads - Classes 26 and 38

For coated or plated internal threads, the maximum values of minor diameter and pitch diameter specified in Table 5 may be increased by the same amount permitted in para. 5.1 for external thread decrease. The limits for coated or plated internal threads shall be within the values specified in Table 5.

45



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ASME BI-15 95 0759b70 0565800 824 H


SECTION 6 DESIGNATION OF THREADS

ASME 81.15-1995

6.1 Basic Desianation Ifl Internal Thread, Runout Control 1.5ooO-18 UNJEF-3B (21s)

Unified inch screw threads are identified with the Runout variation - 0.5 PD Tol. letters UN in the thread designation. The inch screw thread described in this Standard is designated by the letters UNJ to identify the inch J thread form. 6.3 Designation of Coated Threads

6.2 Standard Thread Series Designation

Standard threads shall be designated by indicating in sequence the nominal size, the number of threads per inch, the thread series symbol, and the thread class symbol. The gaging system designator depicted in the examples may be designated at each thread callout as shown, or as a general note on the drawing, specification sheet, or applicable document.

EXAMPLES: ( a ) External Thread, Right Hand

1 lTh!ds\r inch

0.2500-20 UNJC-3A (22) LInspection system

External thread class symbol

Coarse pitch series symbol

Nominal size (basic major diameter)

( b ) Infernal Thread, Right Hand

I lTh!ac!per inch

3.5000-12 UNJ-2B (21) LInspection system

Internal thread class symbol

Constant pitch series symbol

Nominal size (basic major diameter)

( C ) External Thread, Left Hand 0.9375-20 UNJEF-3A-LH (22)

( d ) External Thread, Cumulative Form Control

Cumulative form variations - 0.5 PD Tol.

( e ) External Thread, Angle and Lead Control

1.6250-12 UNJ-3A (22s)

3.7500-16 UNJ-2A (22s) Lead and angle control required

Coated threads shall be designated by only the standard thread designation where the coating allowances given in Section 5 are adequate relief for the applied coating. Unless otherwise specified, threaded parts to be coated shall have the standard coating allowances specified in para. 5.1 for external threads and para. 5.4 for internal threads. The thread limits shall be within tolerance, as modified by the coating allowance, before coating. After coating, the material limits in Table 5 for standard UNJ thread shall apply.

6.4 Designation of Threads Having Modified Crests

Where the limits of size of the major diameter of an external thread or the minor diameter of an internal thread are modified, the thread designation is suffixed by the letters MOD, followed by the modified diameter limits.

EXAMPLE: External thread, major diameter reduced 0.003 in. 0.2500-28 UNJF-3A MOD (22) Major diameter 0.2405-0.2470 MOD

EXAMPLE: Internal thread, minor diameter increased 0.003 in. 0.2500-28 UNJF-3B MOD (21) Minor diameter 0.2182-0.2259 MOD

6.5 Designation of Threads Having Special Length Requirements

Where a standard series thread has a special length of engagement differing from that for which the standard pitch diameter tolerances are applicable, the thread class symbol is prefixed by the letters SE (Spe- cial Engagement) followed by the special pitch diameter limits of size, in accordance with para. 4.1, and the length of engagement ( L E ) .

47



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ASME 81.15-1995

ASME B1.15 95 m 0759670 0565801 760 m

EXAMPLE: Assembly and GO gage length 2 times standard. 0.5000-20 UNJF-SE3A (22) Pitch diameter 0.4635-0.4675 LE 1.00

0.5000-20 UNJF-SE3B (22) Pitch diameter 0.4675-0.4727 LE 1.00

6.5.1 Where a long length of engagement is required and special length GO gages are to be used but the standard tolerances in Table 5 are required, the thread class symbol with letters SPL (special) suf- fix and the length of the GO thread gage shall be used as designated.

EXAMPLE: Assembly and GO gage length 2 times standard but normal size limits required.

0.5000-20 UNJF-3A SPL (22) LC 1.00

6.6 Designation of Special Series Threads

Special diameter pitch threads developed in accordance with this Standard shall be identified by the


letters UNJS for the thread series symbol in the thread designation. Below the designation shall be specified the major diameter, pitch diameter, and minor diameter of the internal thread, and the major diameter, pitch diameter, minor diameter, and root radius of the external thread. Dimensions for threads of special diameter-pitch combinations shall be computed by using the formulas in paras. 4.3.1 through 4.3.4, rounding the dimensions to four decimal places.

EXAMPLE: External threads 0.2800-28 UNJS-3A (22) Major diameter 0.2735-0.2800 Pitch diameter 0.2542-0.2568 Minor diameter 0.2340-0.2388 Root radius 0.0054-0.0064

EXAMPLE: Internal Threads

Major diameter 0.2800 min. Pitch diameter 0.2568-0.2601 Minor diameter 0.2452-0.2529

0.2800-28 UNJS-3B (21)

48



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ASME BI-I5 75 m 0757670 05b5802 bT7


SECTION 7 ACCEPTABILITY

Acceptability of product threads shall be in accordance with ASME B1.3M to the extent designated at each thread callout or applicable document. See para. 6.2.

Proposed standard ASME B1.23 will provide the specifications and dimensions for the gages used on unified inch J series threads. Until ASME B1.23 is issued, ANSVASME B1.2, with the UNJ thread mi- nor diameter replacing the UN minor diameter, shall be used.

49



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APPENDIX A SYMBOLS - UNJ THREAD DIMENSIONS AND TOLERANCES


Al INTERNAL THREAD DIMENSION SYMBOLS

D D bsc D min

Dl D1 bsc D, max D, min

D2 D2 bsc D2 max D2 min

D3

D3 max

T TDI TD2

MAJOR DIAMETER, int. thd basic major diameter minimum major diameter

MINOR DIAMETER, int. thd basic minor diameter maximum minor diameter minimum minor diameter

PITCH DIAMETER, int. thd basic pitch diameter maximum pitch diameter minimum pitch diameter

MAJOR DIAMETER, int. thd (ROUNDED FORM) maximum major diameter

TOLERANCE minor diameter tol., int. thd pitch diameter tol., int. thd

A2 EXTERNAL THREAD DIMENSION SYMBOLS

d d bsc d max d min

dl

dl dl

d2 dz bsc d2 max d2 min

d3

d3 rnax d3 min

R R max R min

T Td Td2

MAJOR DIAMETER, ext. thd basic major diameter maxim'um major diameter minimum major diameter

MINOR DIAMETER, ext. thd basic minor diameter maximum minor diameter

PITCH DIAMETER, ext. thd basic pitch diameter maximum pitch diameter minimum pitch diameter

MINOR DIAMETER, ext. (ROUNDED FORM) maximum minor diameter minimum minor diameter

ROOT RADIUS, ext. thd maximum root radius minimum root radius

TOLERANCE major diameter tol., ext. thd pitch diameter tol., ext. thd root diameter tol., ext. thd

LE LENGTH OF THD ENGAGEMENT LG GAGING LENGTH es ALLOWANCE, external thread

H HEIGHT, sharp vee thd P PITCH (Y FLANK HALF-ANGLE UNJ THREAD FORM SYMBOL

5 1



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ASME 81-15 95 = 0759670 0565804 4 7 T =

APPENDIX B TOLERANCE TABLE


Table Cl is used in conjunction with the formulas in paras. 4.3.1 and 4.3.3 for selecting tolerances and computing limiting dimensions for special UNJS threads which are not tabulated.

TABLE C l MAJOR DIAMETER TOLERANCE, EXTERNAL THREAD Td, in. Threads per in.

80 72 64

56 48 44

40 36 32

28 24 20

18

Td

0.0032 0.0035 0.0038

0.0041 0.0045 0.0048

0.0051 0.0055 0.0060

0.0065 0.0072 0.0081

0.0087

Threads per in.

16 14 13

12 11 10

9 8 7

6 5 4.5

4

Td

0.0094 0.01 03 0.01 09

0.01 14 0.01 21 0.01 29

0.01 39 0.01 50 0.01 64

0.01 82 0.0205 0.0220

0.0238

GENERAL NOTE: Major diameter tolerances are derived from the following formula:

Td= 0.060

53



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ASME BL.15 95 W 0759670 0565805 306

APPENDIX C COATING OF THREADS


Coating is one or more applications of additive finish of any material including Dry Film lubricants, but not including soft or liquid lubricant. On a cylindrical surface, the effect of coating is to change the diameter by twice the coating thickness - one coating thickness on each side of the cylinder. Because the coating thickness is measured perpendicular to the coated surface while the pitch diameter is measured perpendicular to the thread axis, the effect of a uniformly coated thread flank on the pitch diameter is a change four times the thickness of coating on the flank.

The diameters of external threads before coating will be smaller while the diameters of internal threads before coating will be larger than the coated diameters.

( a ) External Thread - Maximum and Minimum Coating Thickness Specified. To determine before coating gaging limits, for a uniformly coated thread, decrease:

(1) maximum pitch diameter by four times maximum coating thickness; (2) minimum pitch diameter by four times minimum coating thickness; (3) maximum major diameter by two times maximum coating thickness; (4) minimum major diameter by two times minimum coating thickness.

( b ) Nominal orMinimum Coating Thickness Specified. If no coating thickness tolerance is given, it is recommended that a tolerance of plus 50% of the nominal or minimum thickness be assumed. Then, to determine before coating gaging limits for a uniformly coated thread, decrease:

(1) maximum pitch diameter by six times coating thickness; (2) minimum pitch diameter by four times coating thickness; (3) maximum major diameter by three times coating thickness; (4) minimum major diameter by two times coating thickness.

(C) Internal Threads. Standard internal threads provide no allowance for coating thickness. To determine before coating gaging limits for a uniformly coated thread, increase:

(1) minimum pitch diameter by four times maximurn coating thickness, if specified, or by six times minimum or nominal coating thickness, when a tolerance is not specified;

(2) maximum pitch diameter by four times minimum or nominal coating thickness; (3) minimum minor diameter by two times maximum coating thickness, if specified,

(4) maximum minor diameter by two times minimum or nominal coating thickness. ( d ) Other considerations are essential to adequately review all possibilities and consider

limitations in the threading and coating production processes before finalizing the coating process and the allowance required to accommodate the coating. A no allowance thread after coating shall not transgress the basic profile and is, therefore, subject to acceptance using a basic size GO thread gage.

or by three times minimum or nominal coating thickness;

55



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ASME 81-15 95 0759670 0565806 242

AMERICAN NATIONAL STANDARDS FOR SCREW THREADS

(Published by The American Society of Mechanical Engineers)

TITLE OF STANDARD

Unified Inch Screw Threads (UN and UNR Thread Form) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.1-1989 Gages and Gaging for Unified Inch Screw Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.2-1983(R1991) Screw Thread Gaging Systems for Dimensional

Acceptability - Inch and Metric Screw Threads (UN, UNR, UNJ. M. and MJ) . . . . . . . . . . B1.3M-1992

Nomenclature. Definitions. and Letter Symbols for Screw Threads . . . . . . . . . . . . . . . B1.7M-l984(R1992)

Buttress Inch Screw Threads 7"/45" Form With 0.6 Pitch Basic Height of

Acme Screw Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.5-1988(R1994)

Stub Acme Screw Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.8-1988(R1994)

Thread Engagement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.9-1973(R1992) Unified Miniature Screw Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B I .I 0.1958(R1988) Microscope Objective Thread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.11-1958(R1994) Class 5 Interference-Fit Thread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.12M-l987(R1992) Metric Screw Threads - M Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.13M-1995 Unified Inch Screw Threads (UNJ Thread Form) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.15-1995 Gages and Gaging for Metric M Screw Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.16M-l984(R1992)

Fasteners - Boundary Profile Defined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B I . I 8 M.I982(R1987)

Fasteners - Boundary Profile Defined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.19M-I984(R1992) Pipe Threads. General Purpose (Inch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.1-1983(R1992) Dryseal Pipe Threads (Inch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.3-1976(R1982) Dryseal Pipe Threads (Metric Translation of 81.20.3-1976) . . . . . . . . . . . . . . . . . . . . . . B1.20.4-1976(R1982) Gaging for Dryseal Pipe Threads (Inch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.5-1991

Of B1.20.5-1978) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.6M-1984 Hose Coupling Screw Threads (Inch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.7-1991 Metric Screw Threads - MJ Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.21M-1978 Gages and Gaging for MJ Series Metric Screw Threads . . . . . . . . . . . . . . . . . . . . . . . . B1.22M-I985(R1992) Screw Threads - Standard Practice for Calculating

Metric Screw Threads for Commercial Mechanical

Gages for Metric Screw Threads for Commercial Mechanical

Gaging for Dryseal Pipe Threads (Metric Translation

and Rounding Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.30M-1992

The ASME Publications Catalog shows a complete list of all the Standards published by the Society . For a complimentary catalog. or the latest information about our publications. call 1-800-THE-ASME (1.800.843.2763) .



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ASME_B1-15_-_1995

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