-
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a
practical regime of right to information for citizens to secure
access to information under the control of public authorities, in
order to promote transparency and accountability in the working of
every public authority, and whereas the attached publication of the
Bureau of Indian Standards is of particular interest to the public,
particularly disadvantaged communities and those engaged in the
pursuit of education and knowledge, the attached public safety
standard is made available to promote the timely dissemination of
this information in an accurate manner to the public.
इंटरनेट मानक
“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda
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Sangathan
“The Right to Information, The Right to Live”
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता
है”Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”
“Invent a New India Using Knowledge”
है”ह”ह
IS 13723 (2002): Hexagon Nuts Style 2 with Metric FinePitch
Thread - Product Grades A and B [PGD 31: Bolts, Nutsand Fasteners
Accessories]
-
IS 13723:2002
ISO 8674:1999
Wwmmw
&
HEXAGON
Wkm--Ri-sydl?dl(Wd7!p%m,)
Indian Standard
NUTS STYLE 2 WITH METRICFINE PITCH THREAD — PRODUCT
(First Revision )
ICS 21.060.20
GRADES A AND B
I
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@ BIS 2002
BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR
MARG
NEW DELHI 110002I
I November 2002I
Price Group 3
I
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Bolts, Nuts and Fasteners Accessories Sectional Committee, BP
33
NATIONAL FOREWORD
This Indian Standard (First Revision) which is identical with
ISO 8674:1999 ‘Hexagon nuts, style 2, withmetric fine pitch
thread—Product grades A and B’ issued by the International
Organization forStandardization (ISO) was adopted by the Bureau of
Indian Standards on the recommendation of theBolts, Nuts and
Fasteners Accessories Sectional Committee and approval of the Basic
and ProductionEngineering Division Council.
This standard was originally published in 1994 by adoption of
ISO 8674:1988. This first revision hasbeen made by adopting the
latest version of ISO 8674 published in 1999.
The text of ISO Standard has been approved as suitable for
publication as Indian Standard withoutdeviation. Certain
terminology and conventions are, however, not identical to those
used in the IndianStandards. Attention is drawn especially to the
following:
a) Wherever the words ‘International Standard’ appear referring
to this standard, they shouldbe read as ‘Indian Standard’.
b) Comma (,) has been used as a decimal marker while in Indian
Standards, the current practiceis to use a point (.) as the decimal
marker.
LSO 724:1993
ISO 898-6:1994
ISO 965-1:1998
ISO 3269:1)
ISO 4042:1999
do
do
do
do
do
In this adopted standard, reference appears to certain
International Standards for which Indian Standardsalso exist. The
corresponding Indian Standards which are to be substituted in their
places are listedbelow along with their degree of equivalence for
the editions indicated:
International Standard Corresponding Indian Standard Degree
ofEquivalence
ISO 225:1983 IS 8536:1987 Fasteners—Bolts, Identicalscrews,
studs and nuts—Symbols anddesignation of dimensions
(firstrevision)
IS 4218 (Part 3):1999 ISO Generalpurpose metric screw
threads:Part 3 Basic dimensions (secondrevision)
IS 13096:2000 Fasteners—Hexagonnuts with specified proof
loadvalues—Fine pitch thread—Mechanical properties (first
revision)
IS 14962 (Part 1):2001 ISO Generalpurpose metric screw
threads—Tolerances: Part 1 Principles andbasic data
IS 1367 (Part 17):19962) Industrialfasteners—Threaded steel
fasteners—Technical supply conditions : Part 17Inspection, sampling
and acceptanceprocedure (third revision)
IS 1367 (Part 11 ):2002 Technicalsupply conditions for threaded
steelfasteners: Part 11 Electroplatedcoatings (third revision)
I
I) TO be published (Revision of ISO 3269).Z)lden~~~l with ISO
3269:1988.
(Continued on third cover)
-
IS 13723:2002 $
ISO 8674:19994
i,i:~
Indian Standard ,,4.,
HEXAGON NUTS STYLE 2 WITH METRIC I
FINE PITCH THREAD— PRODUCT GRADES A AND B
(First Revision )..
This International Standard specifies the characteristics of
hexagon nuts, style 2, with metric fine pitch thread, withnominal
thread diameters d from 8 mm up to and including 36 mm, with
product grade A for sizes d up to andincluding 16 mm and product
grade B for sizes d over 16 mm.
If, in special cases, specifications other than those listed in
this International Standard are required, they should beselected
from existing International Standards, for example ISO 724, ISO
898-6, ISO 965-1 and ISO 4759-1.
Coarse thread hexagon nuts, style 2, according to ISO 4033
should be the first choice.
NOTE For hexagon nuts, style 1, with fine pitch thread, see ISO
8673.
2 Normative references
The following normative documents contain provisions which,
through reference in this text, constitute provisions ofthis
International Standard. For dated references, subsequent amendments
to, or revisions of, any of thesepublications do not apply.
However, parties to agreements based on this International Standard
are encouraged toinvestigate the possibility of applying the most
recent editions of the normative documents indicated below.
Forundated references, the latest edition of the normative document
referred to applies. Members of ISO and [ECmaintain registers of
currently valid International Standards.
LSO 2251983, Fasteners — Bolts, screws, studs and nuts — Symbols
and designations of dimensions.
ISO 724:1993, ISO general-purpose metric screw threads — Basic
dimensions.
LSO 898-6:1994, Mechanical propeflies of fasteners — Part 6:
Nuts with specified proof load values — Fine pitchthread.
ISO 965-1:1998, ISO general purpose metric screw threads —
Tolerances — Part 1: Principles and basic data.
ISO 3269:—1 ), Fasteners — Acceptance inspection,
ISO 4042:1999, Fasteners — Electroplated coatings.
ISO 4759-1 :—2), Tolerances for fasteners — Part 1: Bolts,
screws, studs and nuts — Product grades A, B and C.
ISO 6157-2:1995, Fasteners — Surface discontinuities — Part 2:
Nuts.
ISO 8839:1986, Mechanical properties of fasteners — Bolts,
screws, studs and nuts made of non-ferrous metals.
ISO 8992:1986, Fasteners — General requirements for bolts,
screws, studs and nuts.
ISO 10683:—3), Fasteners — Non-electrolytically applied zinc
flake coatings.
‘j To be published. (Revision of ISO 3269: 1988)
2, To be published. (Revision of 1S0 4759-1:1 978)
3, To be published.
--- ..
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IS 13723:2002ISO 8674:1999
3 Dimensions
See Figure 1, Tables 1 and 2.
Symbols ar,{ descriptions of dimensions are defined in ISO
225.
P’c
mW
@ ‘p@
a
“m g .—. m ~~ .— m3
e
. . al
mW mW sm m
a Washer-face form to be ordered separately.b p=15”to 30”
c e =90°to 120°
Figure 1
2
-
IS 13723:2002ISO 8674:1999
Table 1 — Preferred threads
Dimensions in millimetres1 1 I I
Thread (d x P) M8X1 M1OX1 M12x1,5 M16x1,5 M20 X 1,5 M24 X 2 I
M30 X 2 I M36 X 3 Imax.~,
min.
0,60 I 0,60 I 0,60 1 0,8 0,8 I 0,8 I 0,8 I 0,8 I0,2
I0,2
I0,2
I0,2 I0,15 I 0,15 I 0,15 I 0,2
max.da
8,75 I 10,8 I 13 [ 17,3 21,6 I 25,9 I 32,4 I 38,9 Imin.
dw min.
e min. I 14,38 I 17,7’7 I 20,03 I 26,75 32,95 \ 39,55 I 50,85 I
60,79 I
434,7
33,1
26,48
1
nom. = max..7
13,00 I 16,00 I 18,00 I 24,00 30,00 I 36 I 46 I 55,0 I12,73 I
15,73 I 17,73 I 23,67 29,16 I 35 I 45 I 53,8 Imin.
Table 2 — Non-preferred threads
Dimensions in millimetres
Thread (d x P) M1OX1,25 M.12x 1,25 M14x1,5 M18x1,5 M20x2 M22x1,5
M27 X 2 M33 X 2 I-----
0,60 I 0,60 I 0,60 I 0,8 I 0,8 I 0,8 I 0,8 0,8 Imax.~0,15 I 0,15
I 0,15 I 0,2 I 0,2 I 0,2 I 0,2
i
0,2
35,6
min.
10,8I
12I
15,1I
19,5 I 21,6 I 23,7 I 29,1max.da10,0 I 13 I 14,0 I 18,0 I 20,0 I
22,0 I 27,0
-i
33,0
46,55
min.
14,63 I 16,63 I 19,64I 24,85 I 27,7 I 31,35 I 38(Iw min.
~
55,37
32,5
17,77 20,03 23,36 29,56 32,95 37,29 45,2
9,30 12,00 14,1 17,6 20,3 21,8 26,7
8,94 11,57 13,4 16,9 19,0 20,5 25,4
7,15 9,26 10,72 13,52 15,2 16,4 20,32
e min.
max.m
min. 430,924,72nl~ min.16,00 I 18,00 I 21,00 I 27,00 I 30,00 ]
34 I 41 50
49 i
nom. = max.s
15,73 17,73 20,67 26,16 29,16 33 40min.
3
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IS 13723:2002
ISO 8674:1999
4 Specifications and reference standards
See Table 3.
Table 3 — Specification and reference standards
flaterial Steel
>eneral requirements International Standard ISO 8992
“bread Tolerance 6H
International Standards ISO 724, ISO 965-1
flechanical Property classa ~< 16rnrn:8, 12
wopertiesd16mm:B
International Standard 1s04759-1
‘inish and/or coating As processed
Requirements for electroplating are covered in 1S0 4042.
Requirements for non-electrolytically applied zinc flakecoatings
are covered in ISO 10683.
If different electroplating requirements are desired or
ifrequirements are needed for other finishes, they should
benegotiated between customer and supplier.
Limits for surface discontinuities are covered in ISO
6157-2,
acceptability For acceptance procedure, see ISO 3269.
‘ For other property classes see ISO 898-6.
..k;
5 Designation
EXAMPLE:
A hexagon nut, style 2, with thread Ml 6 x 1,5 and property
class 12 is designated as follows:
Hexagon nut ISO 8674- M16 x 1,5-12
-
IS 13723:2002ISO 8674:1999
Bibliography
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[1o]
ISO 4014:1999, Hexagon head bolts — Product grades A and B.
ISO 4015:1979, Hexagon head bolts — Product grade B — Reduced
shank (shank diameter approximatelyequal to pitch diameter).
ISO 4016:1999, Hexagon head bolts — Product grade C.
ISO 4017:1999, Hexagon head screws — Product grades A and B.
ISO 4018:1999, Hexagon head screws — Product grade C.
ISO 4032:1999, Hexagon nuts, style 1 — Product grades A and B.
-
ISO 4033:1999, Hexagon nuts, sty/e 2 — Product grades A and
B.
ISO 4034:1999, Hexagon nuts — Product grade C.
ISO 4035:1999, Hexagon thin nuts (chamfered) — Product grades A
and B.
ISO 4036:1999, Hexagon thin nuts (unchamfered) — Product grade
B.
[11 ] ISO 4161:1999, Hexagon nuts with f/ange – Coarse
thread.
[12] ISO 41 62:—4), Hexagon bo/ts with flange — Small series —
Product grade combination A/B.
[13]ISO 4775:1984, Hexagon nuts for high-strength structura/
bo/ting with large width across f/ats — Product
[14]
[15]
[16]
[17]
[18]
grade B — Property classes 8 and 10. \
ISO 7411:1984, Hexagon bolts for high-strength structural
bolting with large width across flats (thread lengthsaccording to
ISO 888) — Product grade C — Propefty classes 8.8 and 10.9.
ISO 7412:1984, Hexagon bolts for high-strength structural
bolting with large width across flats (short threadlength) —
Product grade C - Propefly classes 8.8 and 10.9.
ISO 7413:1984, Hexagon nuts for structural bolting, style 1,
hot-dip galvanized (oversize tapped) — Productgrades A and B —
Propefly classes 5, 6 and 8.
ISO 7414:1984, Hexagon nuts for structural bolting with large
width across flats, style 1 — Product grade B —Propetiy class
10.
ISO 7417:1984, Hexagon nuts for structural bolting, style 2,
hot-dip galvanized (oversize tapped) — Productgrade A — Propefly
class 9.
[19]ISO 8673:1999, Hexagon nuts, style 1, with metric fine pitch
thread — Product grades A and B.
[20] ISO 8675:1999, Hexagon thin nuts (chamfered) wjth metric
fine pitch thread — Product grades A and B.
[21] ISO 8676:1999, Hexagon head screws with metric fine pitch
thread — Product grades A and B.
[22] ISO 8765:1999, Hexagon head bolts with metric fine pitch
thread — Product grades A and B.
[23] ISO 10663:1999, Hexagon nuts with f/ange – Fine pitch
thread.
[24] ISO 15071:1999,Hexagon bo/ts with f/ange — Small series —
Product grade A.
,-------
4J To be published. (Revision of ISO 4162:1990)
5
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(Continued from second cover)
International Standard
1s0 4759-1 :-1)
ISO 6157-2:1995
ISO 8992:1986
Corresponding Indian Standard
IS 1367 (Part 2):2002 Technical supplyconditions for threaded
steelfasteners: Part 2 Product grades andtolerances (third
revision)
IS 1367 (Part 10):2002 Technicalsupply conditions for threaded
steelfasteners: Part 10 Surfacediscontinuities — Nuts (third
revision)
IS 1367 (Part 1):2002 Technical supplyconditions for threaded
steelfasteners: Part 1 Introduction andgeneral information (third
revision)
Degree ofEquivalence
Identical
do
do
The concerned Technical Committee has reviewed the provisions of
following ISO Standard referred inthis adopted standard and has
decided that it is acceptable for use in conjunction with this
standard:
ISO Standard Title
ISO 8839:1986 Mechanical properties of fasteners—Bolts, screws,
studs and nuts made ofnon-ferrous metals
ALTERATION
[nclause 5 the designation of hexagon nut, style 2 with thread
Ml 6 x 1.5 and property class 12 shall beread as:
‘Hexagon nut—lS ~3723/lSO 8674-M16 x 1.5-12’ in place of
‘Hexagon nut-lSO 8674-M16 xl.5 -12’.
PACKAGING
The packaging of hexagon nut shall be done in accordance with IS
1367 (Part 18):1996 ‘Industrialfasteners—Threaded steel
fasteners—Technical supply conditions: Part 18 Packaging (third
revision)’.
CORRIGENDUM
(Page 3, Tab/e 2, co/3)—The maximum and minimum values of d. for
size M 12x 1.25 shall be read as‘13 and 12’ in p/aceof’12 and 13’
respectively.
BIS CERTIFICATION MARKING
Details available with the Bureau of Indian Standards.
For the purpose of deciding whether a particular requirement of
this standard is complied with, the finalvalue, observed or
calculated, expressing the result of a test or analysis, shall be
rounded off in accordancewith IS 2:1960 ‘Rules for rounding off
numerical values (revised)’. The number of significant
placesretained in the rounded off value should be the same as that
of the specified value in this standard.
>---
,>
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B(l~~ilu of Indiiln Standards
B 1S is a statutov institution established under the Bureau of
Indian Standards Act, 1986 to promote harmoniousdevelopment of the
activities of standardization, marking and quality certification of
goods and attending toconnected matters in the country.
Copyright
BIS has the copyright of all its publications: No part of these
publications may be reproduced in any formwithout the prior
permission in writing of BIS. This does not preclude the free use,
in the course of implementingthe standard, of necessary details,
such as symbols and sizes, type or grade designations. Enquiries
relating tocopyright bc addressed to the Director (Publication),
BIS.
Review of In(liiin Stilndards
Amendments are issued to standards as the need arises on the
basis of comments. Standards are also reviewedpcriodici]lly: a
standard along with amendments is reaftlrmed when such review
indicates that no changes arenccdcd; if the review indicates that
changes are needed, it is taken up for revision. Users of Indian
Standardsshould asccrt ain that they are in possession of the
latest amendments or edition by referring to the latest issue
of‘BlS Catalogue> and ‘Standards: Monthly Additions’.
This Indian Standard has been developed from DOC:No. BP 33
(0120).
Amendments Issued Since Publication
Amend No. Date of Issue Text Affected
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