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IS 1364 (Part1 ) : 1992 IS0 4014 : 1988
( Reaffirmed 1998 )
(
~;r+hJl )
Fik7T
Indian Standard HEXAGO~N HEAD BOLTS, S-CREWS A~ND NUTS OF PRODUCT GRADES A AND B PART
1
HEXAGON
( SIZE RANGE
HEAD
BOLTS
Ml ‘6 TO M64 )
( Third Revision ) Second
Reprint
UDC
MANAK
OF BHAVAN,
BAHADUR
NEW DELHI
October 1992
1992
INDIAN 9
1997
621’882’662
QBIS
BUREAU
APRIL
STANDARDS SHAH
ZAFAR
MARG
110002 Price group
4
Bolts,
Nuts and Fastener
NATIONAL
Accessories
Sectional
Committee,
LM 14
FOREWORD
This Indian Standard ( Part 1 ) which is identical with IS0 4014 : 1988 ‘Hexagon head bolts Product grades A and B’ issued by the International Organization for Standardization ( IS0 ) was adopted by the Bureau of Indian Standards on the recommendation of the Bolts, Nuts and Fastener Accessories Sectional Committee ( LM 14 ) and approval of the Li_ght Mechanical Engineering .Division Council. The standard was originally published in 1960 and revised in 1967. Subsequent to the publication of 1967 edition, many changes had been agreed upon at international level which have been reflected in IS 1367 series of standards covering ‘Technical supply conditions for threaded steel fasteners’. Accordingly, the standard was published in 5 parts covering hexagon head bolts, hexagon head screws, hexagon nuts, hexagon thin nuts ( chamfered ) and hexagon thin nuts ( unchamfered ). The second revision of the standard was based on IS0 4014 : 1979 ‘Hexagon head bolts of Product grades A and .By issued by ISO. This third revision has been made by the adoption of latest version of IS0 4014 published in 1988 as ta!t 1. The remaining parts of the standard from Part 2 to Part 5 have also been revised by adoption of corresponding latest version of International Standards. The following major changes have been made in this revision:
a) b) cl d) e)
The range of sizes has been enlarged The range of n,ominal lengths Non-preferred Stainless
to cover sizes from M 1’6 to M64;
has been extended
sizes have been included
steel bojts with property
up to 500 mm;
in separate
classas A2-70
table
in line with
and A2-50
The use of property classes like 4.8, 4.8, 5.8, 6.8 and 9.8 are the agreement between the manufacturer and .
IS0 4014;
have been included; also
permitted
and
subject
to
In the 1967 version of this standard, the width across flats for Ml 0 and Ml 2 size fasteners was specified as 17 mm and 19 mm respectively. However, in the 1983 version this width across flats was brought in line with IS0 4014 : 1979 and specified as 16 mm and 18 mm respectively for Ml 0 and Ml 2 size fasteners. Recognizing the fact that the new width across flat dimensions could not be implemented immediately, the ~Expianatory Note to 1983 version of the standard made a reference to this aspect. However, in the absence of specificcoverage in the standard, the new width across flat dimensions could not be implemented. Recognizing the difficulty of immediate changeover to new width across flats, the Committee felt that definite time frame may begiven to the manufacturer7 for changeover and accordingly, it has been decided that width across flats as per 1967 version, that is, 17~mm and 19 mm for Ml0 and 12 size fasteners shall be permitted till 31 December 1994. It is also understood that some,-.manufacturers are already equipped and manufacturing new width across flat dimensionwnd supplies as per new specifications are encouraged. this period, the manufacture of fasteners as per old versions shall be phased out 1 January 1995, it is expected that the entire fastener industry would have switched new width dimensions across flats and no old width across flats shall be permitted. In the adopted standard, certain terminology and conventions are not identical in Indian Standards; attention is specially drawn to the following: ~a) Wherever the words ‘International Standard’ should be read as ‘Indian Standard’; and
appear,
b) Ccmma ( , ) has been used as a decimal marker while practice is to use point ( . ) as the decimal marker.
referring in Indian
to this
with
those used
standard,
Standards
( Continued
as per During and by over to
they
the current
on third cover )
IS 1364 ( apart 1 ) : 1992 IS0 4014 : 1988
Indian
Standard
HEXAGON HEAD BOLTS, SCREWS AND NUTS OF PRO-DUCT GRADES A A-ND B PART 1
HEXAGON
HEAD
BOLTS
( SIZE RANGE Ml ‘6 TO M64 )
( Third Revision )
0
introduction
This International
1
Standard
is part of the complete
IS0 product
standard
series on hexagon
a)
hexagon
head bolts (IS0 4014, IS0 4015, IS0 4016 and IS0 8765);
b)
hexagon
head screws
c)
hexagon
nuts (IS0
d)
hexagon
flanged
bolts (IS0
e)
hexagon
flanged
screws
f)
hexagon
flanged
nuts (IS0 4161, IS0 7043 and IS0 7044) ;
g)
structural
Scope
bolting
(IS0
drive fasteners.
The series comprises
:
4017, IS0 4018 and IS0 86761;
4032, IS0 4033, IS0 4034, IS0 4035, IS0 4036, IS0 8673, IS0 8674 and IS0 8675);
(IS0
4162 and IS0 8102) ;
; I’
4775, IS0 7411 to IS0 7414 and IS0 7417).
and field of application
This International Standard gives specifications for hexagon head bolts with threads from Ml,6 up to and including M64, of product grade A for threads Ml ,6 to M24 and nominal lengths up to and including 10 d or 150 mm, whichever is shorter and product grade B for threads over M24 or nominal lengths over 10 d or 150 mm, whichever is shorter. If, in special cases, specifications existing International Standards,
1)
other than those listed in this International Standard are required, they should be selected for example IS0 261, ISO 888, IS0 898-1, IS0 965-2, IS0 3506 and IS0 4759-1.
These will form the auojects of future International Standards.
1
from
IS 1364 ( Part 1 ) : 1992 IS0 4014 : 1988
2
References
ISO 225, Fasteners I50
Bolts, screws and nuts -
Symbols and designations of dimensions.
261, IS0 general purpose metric screw threads -
IS0 666, Bolts, screws and studs IS0 898-1, klechanical I50 965-2,
IS0
threads -
Medium
properties
General plan.
Nominal lengths and thread lengths for general purpose bolts and screws.
of fasteners
-
Part 1: Bolts, screws and studs.
general purpose metric screw threads -
Tolerances
-
Part 2: Limits of sizes for general purpose
IS0 3263, Fasteners
-
Acceptance
IS0 3506, Corrosion-resistant
IS0 4753, Fasteners -
Ends
inspection.
stainless steel fasteners
IS0 4642, Threaded components
-
Electroplated
ofparts with
IS0 4759-1, Tolerances for fasteners grades A, B and C.
-
-
Specifications.
coatings. ‘)
external metric IS0
thread.
Part 1: Bolts, screws and nuts with thread diameters
> 1,6 and < 150 mm and product
IS0 6157-1, Fasteners -
Surface discontinuities
-
Part I: Bolts, screws and studs for general requirements. ‘)
IS0 6157-3, Fasteners -
Surface discontinuities
-
Part 3: Bolts, screws and studs for special requirements.
IS0 6633, Mechanical ISO 6392, Fasteners -
1)
bolt and nut
quality.
propertins of fasteners General requirements
-
Bolts, screws, studs and nuts made of non-ferrous
for bolts, screws and nuts.
At present at the stage of draft.
2
metals.
‘)
IS 1364(Partl ):1992 IS0 4014 : 1988
3
Dimensions
NOTE -
Symbols
and descriptions
of dimensions
are specified
in IS0 225.
Dimension
Point must be chamfered or for threads mab be as-rolled (sheared end) (see IS0 4753)
< M4
X underhead
1)
Incomplete
threao
u < 2 p
fillet
in millimetres
Table
1 -
Preferred
threads Dimensions
Thread, d
Ml,6
P’)
0.35 9
2' 3)
b ref.
6 nom.
4
Product
16
18
-
I_
_
~
_
22
_
_
-
_/ 0.2
0.8
0.6
9.2
11.2
13.7
6
8
10
5.82
7.78
0.25
0.4
0.4
0.5
max.
2
2.6
3.1
3.6
4.7
1.6
2
2.5
3
1.46
1.86
2.36
2.86
_
_
4.07
4.57
3.41
4.32
6.45
0.5
0.6
5.7
6.8
4
5
3.82
4.82
5.88
6.01
0.8
1
7.66
_ 1
1.2
8.i
6.88
11.63
8.79
11.05
_
_
1.2
1.4
14.36
11.73
I
,
96
108
_
_
_
73
85
97
109
121
137
153
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.8
0.8
0.8
0.8
0.8
1
1
1
1
17.7
22.4
26.4
33.4
39,4
45.6
52.6
63
71
30
36
42
49
56
64
,’
16
20
24
15.73
19,67
23.67
28.19
33.61
22
27.7
33.25
-
_
29.48
35.38
/
33.53
39.98
_
_
32.95
39.55
50.85
E0.79
3
4
4
12.5
1.1
1.4
1.7
2
2.8
3.5
4
5.3
6.4
7.5
min.
0.975
1.275
1,575
1.875
2,675
3.35
3.85
5.15
6.22
7.32
9.82
12.265
14,785
_
_
max.
1,225
1,525
1.825
2,125
2,925
3.65
4.15
5.45
6.58
7.68
10.18
12,715
15,215
_
_
Product grade B min. max.
Product gradeA min.
-
_
-
_
- 0.68
0.=
min. = max.
A Product gradeB min.
_
_
_
_
_
_
_
1.1
_
_
0.1
0.1
0.1
3.2
4
3,02'
_
1.31
1.87
_
_
_
0.1
0.2
0.2
5
5.5
7
8
3.62
4.82
5.32
6.78
7.78
_
_
_
_
_ _
2.7
2.35
_
_
B
_
3,61
10 3.78
_
0.4
9.71
12.15
14.65
18.28
_
10.29
12.85
15.35
19.12
6.87
8.6
10.35
_
8.51
10.26
12.8
4.35
5.12 _
6,8
0.4
0.6
0.6
_
0.25
_
I
0.8
0.8
13
16
18
24
30
36
12.73
15.73
17.73
23.67
29.67
35.36
_
_
_
23.16
29.16
35
1
22.08
iz?
_
_ j8.6.5
71.3
82.6
93.56
88.18
1
_ 104.85
8
10
12
13
26
30
35
40
-
-
---
_
_
-
-1 _
25.56
29.58
34.5
39.5
26.42
30,42
35.5
40.5
_
_
17.91
1
46
55
65
_
_
53.8
63.1
45
_ 69.45
_
15.46
_ 63.26
55.26
59.95
1
_
47.38
_
22.5
18.7
0,3
_
_
6
6
15
41.38
51.11
26.75
10
_
_
_ 42.75
X.17
3
_
64
22.49
2
6
_
72
16.63
_
_
MW
5.5
5
60
14‘63
20.03
4.5
in millimetres
M66
52
23.48
i7.n
4
3.5
M46
66
19.46
_
M42
54
15.57
_
M36
46
_
_ 2
/
I
M30
3
_
_
_
12
9.76
_ _
_
_ 0.6
0.15
_
44
M24
2.5
38
0.15
0.15
M20
2
30
_
0.25
3.07
26
_
0.25
_
Ml6
1.75
_
max.
2.27
1.5
_
0.15
min.
Ml2
Ml0
_
0.15
nom.
s
1.25
0.15
max.
nom.
0.8
1
0.15
A Product gradeB min.
r
M6
0.1
e
k' 5,
0.7 14
M6
_
_
A
Product grade A
0.5 12
M5
0.1
ProkiuctgradeB min.
k
11
10
M4
0.1
dw
I/
0.4
0.45
M3
min.
= max.
grade:
M2.5
_
4)
c
M2
_ m.71
I,2
75
I 73.1
27.65
24.15
1.6
2
2
85
95
82.8
I
_ 92.8
Product grade A
I
I,and lp6J,7)
lax. min. max. min. &3x. min.
Forsizes
niax. min. max. min. max. min. max. min. max. min. max. min. max. min. max. min.
abovethesteppedline.
marked
thus-,
IS0 4017 is recommended.
I
24
17
23 22 34 -1
27
’
22
11.75 18
27
16.75 23
11.5
19
32
21.75 28
18.5
24 11.25 20
max. min. ma.
min. ma
37
16..
42 -
11,;
!
l6.; 11.; i1.i -
-
120
119.3 120.7 118.25121.75
-._
_
-
_
I
, 96 106 65.5 98 .---.---_-_-__----_
-
106
116
75
95.5 108
85
SO ; 60.5 100
JO.5
36
56
78
46
66
88
56
76
-
197.5 215
400
-
-
397,15402,85
420
-
-
416.6542315
440-
-
436.65443,15
450-
-
4!%,65463.15
480
-
-
500
-
-
-
476.85453.15 496.655a3.15
I
-
1) P = pitch of thread. 2)
For len&hs I”,,,,, < 125 mm.
31 For lengths 126 mm < &,, 4)
For lengths I,,,,, > 2UOmm.
5)
k’tin
6)
IBmx=Ino,-b lsmh
7)
< 200 mm.
= 0.7 kmin
= Ismax
- 5P
I* is the minimum grip length.
NOTE - The pbpular lengths are defined in of lengths I, and lK: -
product grade A above the stepped line, marked thus -
-
product grade 6 below this stepped line.
I II
/I
-
-
-
I II
61.5
76
96
84
47
116
81.5 1bl
67
92
lx3
1. 23
58.5 111
74
SS
72
_ 55,5
I 83
I23
1, 43 108.5 131
94
119
75.5 11 33
43 -.
11 53 128.5 151
114
139
95,5 1: 23
63
11 33 148.5 171
134
159 115,5 1,
12;
83
2lx3 168.5 1' 91
154
179 135,5 II
14;
'03 z 23 168.5 2 11 174 --_ 23 2'u 208.5 2: 31 194
199 155,5 11
16; _
219 175,52l
l8i
'43 21a
-
I
Ed
93
-
II
_ 41.5
I -
77
lo; -
228.5 2! 51
214
239 195.5z
!Oj
248.5 2 71
234
259 215,5 2d
Zi _
268.5 2!31
254
279 235,5 2c
!47
2885
3'I1
274
2%
'67
31
294
319 275.1 5x
308.5
255,52t
314
53s
334
534 5?&
87 _ OJ
J
Table 2 -
Non-preferred
threads dimdnsions
Thread,
d
P’)
M3.5
Ml4
Ml8
r&2
0.6
2
2.5
2.5
13
b ref.
34
_ -
31
40
j
Product
Product
i
Product
grade
grade
I
0.8 24.4
30,4
36.4
42.4
48.6
56.6
67
= max.
3.5
14
18
22
27
33
39
46
52
60
3.32
13.73
17.73
21.67
_
_
_
_
_
_
_
_
17.57
21.48
26.48
32.38
38.36
44.38
51.26
59,26
5.07
19.37
25.34
31,71
_
_
_
_
_
_
1
Product
grade
I
I
91
I
103
115
129
I
145
,
31.35
/
30.14
38
j
37.72
29.56
46.5
-
37.29
/
55.86
-
45,2
1
64.7
-
55.37
-
/
74.2
-
66.44
_
j
83.41
-
76,95
1
-
88,25
99.21
max.
1
3
3
4
6
6
6
8
10
12
no”l. -
2.4
‘3.8
11.5
14
17
21
25
28
33
36
2,275
8.62
11,285
13,785
_
_
_
_
_
_
2,525
8.98
11,175
j
14,215
_
_
_
_
_
_
11.15
I I
13.65
32.5
37,5
I I
_
I
-
-
min.
11.85
-
I I
1.59
_
6.03
-
0.1
= max.
i
-
79
0.2
24,&i
I
23.36
-
F Product
_
20.2
min. nom.
116
j /
15.7
max. A B
102
4.1
min. ~ max.
6
_
90
78
5.5
max.
min.
I
_
0.8
-
69
-
0.2
min.
I
_
’
min. Product
66
_
MM)
0.6
min.
grade A
56
5
0.15
A B
grade
48
M52
4.5
0.4
max.
6.58 Product
60
M45
4
0.15
A B
grade
50
M39
3,5
_
d.
grade
42
M33
/
min. c
Product
3
_
41
nom.
M27
in millimetl
1
7.9
I
7.81
16.65
I
14.35
.~
0.6
I
9.65
I
_
I
9.56
I
11.66
0.6
0.8
I
6
21
27
5.82
20.67
26.67
33.38
-
-
26.16
33
I
M.58
/
I
24.58
I I I
41
/
I I
14.41
_
1 /
25,42
-
I
27.58
I
21.42
1
34
1 I
17.35
I I
/
I
28.42
-
I
17.21
33,5
-
I
I I
19.31
38.5
-
I
-
22.75
I
26.25
1
1
50
60
70
80
90
_
-
_
_
58.8
68.1
78.1
_
1.2
l-6
2
min. 40
49
87.8
grade
A
B
k I
‘* min.
‘E
4 min.
max.
4
7
9
12
14
17
19
22
‘r max.
I I I I I i I
‘5
‘8
‘*
‘8
4
min.
max.
min.
max.
min.
In / max.
For sizes above the stewed
t 16
26
‘P
I5 min.
max.
line, marked
thus-,
‘S
‘g
I.c
‘g
4
‘g
‘*
‘g
min.
max.
min.
max.
min.
max.
min.
max.
IS0
4017 is recommended
j
/
1
I 21
31
’ I
26 36
36
15.5
46
25.5
I
46
56
35.5
56 66
66
45.5
76
55.5
76
86
65.5
5
90
69.5
3
52
100 --_
79.5
3
62
I ’ I
I 80 ’ 90 ---_
-
89.5 --_
72
40
60
99,5
82
50
70
119.5
102
70
90
55.5
134
122
90
110
75.5
39
s
141
129
97
117
82.5
105
66
5 -
161
149
117
137
102.5
125
86
5
181
169
137
157
122.5
145
106
87.5
169
157
177
142,5
165
126
107.5
185
146
78
59
209
177
197
162,5
229
197
217
182.5
166
191
147.5
217
237
202,5
186
211
167.5
195
237
257
222.5
206
231
187.5
215
257
277
242.5
226
251
207.5
235
262.5
246
271
227.5
255
282,5
266
291
247.5
275
302.5
286 306 326
i 11
P = pitch Mthread.
2)
For lengths
31
Forlengths 125 mm
4)
Forlengthsl,,,, > 2CU mm.
5)
k’min
6)
Igmax=I,,om-b
= 0.7
/,,, <
126 mm. < f,,, < 200mm.
kmin
‘srnin = &max - 5p 7)
I,isthe mihimum
NOTE
-
The
grip length.
popular lengths are defined in of lengths I,and $:
_
product
-.
product grade 6 b&w
grade A
above the stepped line,marked this stepped line.
thus - - - -
67.5
127.5 175
IS 1364 ( Part 1 ) : 1992 IS0 4014 : 1988
4
Specifications
and reference
standards
Table
3 -
Specifications
Material
and reference
standards
General
International
requirements
Standard
IS0 6992
Tolerance
6g
Thread International
1
Standards
Class.1)
I
Mechanical
IS0 261. IS0 965-2 d < 3 mm: as agreed 3 mm < d < 39 mm: 5.6.8.8. d > 39 mm: as agreed
International Standards
d < 20 mm: A2-70 20mm
<39mm:A2-50 d > 39 mm: as agreed
10.9
3 mm < d < 39 mm: IS.0 698-l d < 3mmandd > 39mm: as aareed
properties
d < 39 mm: IS0 3506 d > 39 mm: as agreed
Standard
:A :
B
IS0 4759-l as processed Requirements
Finish
IS0 6639 I
I
For d < 24 mm and I < 10 d or 150 mm2) For d > 24 mm or I > 10 d or 150 mm2)
Product grade Tolerances International
Non-ferrous metal
Stainless steel
Steel
I
for electroplating
are-covered
plain
plain in IS0 4042.
If different electroplating requirements are desired or if requirements finishes, they should be agreed between customer and supplier.
I are needed for other
Limits for surface discontinuities are covered in IS0 6157-1 and IS0 6157-3. For acceptance
Acceptability
procedure,
see IS0 3269.
11 The designation symbols for the property classes according to IS0 898-l can also be used for threads above M39, provided that the finished product has all the properties assigned to the designation symbols in IS0 898-l. 2)
5
Whichever
is shorter.
Designation
Example
for the designation
Hexagon
head bolt IS0
of a hexagon
4014
- Ml2
head
bolt with
thread
M12,
x 80 - 8.8
8
nominal
length
I = 80 mm and property
class 8.8:
( Continued
from
second
cover
)
In this adopted standard, reference appears to certain International Standards for which Indian Standards also exist. The corresponding Indian Standards which are to be substituted in their place~are listed below along with their degree of equivalence for the editions indicated: Corresponding
International Standard
Indian
IS0
225
IS 8535 : 1987 Bolts, screws, nuts and Terminology and nomenclature ( first revision )
IS0
261
IS 4218 Diameter
( Part 2 ) : 1976 pitch combinations
IS0
888
IS 4206 : 1987 lengths for bolts,
IS0
898-l
IS 1367 threaded methods
IS0
965-2
IS 4218 ( Part 6 ) : 1978 Limits of sizes for commercial to 52 mm ) (~first revision )
IS0
Degree of Equivalence
Standard
metric
accessories
screw )
threads:
Identical
-
Part
2
( first revision
Dimensions for nominal lengths screws and studs ( first revision )
and
IS0 metric screw threads bolts and nuts ( diameter
Identical
thread
Technical supply conditions ( Part 3 ) : 1991 properties steel fasteners : Part 3 Mechanical for bolts, screws and studs with full loadability
for and
: Part 6 range
Technically equivalent
Identical
1
Technically equivalent
IS0
3269
Technical supply conditions for tnreaded IS 1367 ( Part 17 ) : steel fasteners : Part 17 Acceptance criteria ( under preparation )
Technically equivalent
IS0
3506
IS 1367 threaded fasteners
( Part 14 ), : 1989 Technical supply steel fasteners : Part 14 Stainless ( second revision )
Technically equivalent
IS0
4042
IS 1367 threaded threaded
Technical supply conditions ( Part 11 ) : coatings steel fasteners : Part 11 Electroplated steel fasteners ( under preparation )
IS0
4753
IS 1368 : 1987 Dimensions metric threads ( third revision
for ends of parts
conditions for steel threaded
with
external
for on
Technically equivalent
IS0
Identical
)
IS0
4759-l
IS 1367 ( Part 2 ) : 1979 Technical threaded steel fasteners : Part 2 Product ( second revisron )
IS0
6157-1
IS 1367 ( Part S/Set 1 ) : Technical supply conditions for threaded steel fasteners : Part 9 Surface discontinuities on bolts, screws and studs, Section 1 General requirements ( under preparation )
Identical
IS0
6157-3
IS 1367 (PartS/Sec2) : Technical supply conditions for threaded steel fasteners : Part 9 Surface discontinuities on bolts, screws and studs, Section 2 Special requirements ( under preparation )
Identical
IS0
8839
IS . . . . ..Mechanical properties and nuts made of non-ferrous
Identical
IS0
8992
IS 1367 ( Part 1 ) : 1980 Technical supply threaded steel fasteners: Part 1 Introduction information ( second revision )
supply grades
conditions for and tolerances
screws, studs of fasteners-Bolts, metals ( under preparation ) conditions ‘for and general
Technically equivalent
Equivalent
ALTERATION In clause 5, the designation of hexagon head bolt may IS 1364 ( Part 1 )-IS0 4014-M12x 80-8’8’ in place of M12x80-8’8’.
be read ‘Hexagon
as ‘Hexagon head bolt
head bolts IS0 4014-
Bureau of Indian Standards BIS -is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications may he reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course ol implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publication), BIS. Review of Indian Standards Amendments are issued to standards as Lhe need arises on the hasis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes arc needed; if the review indicates that changes are needed, it is taken up for revision. s of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring lo the latest issue of ‘BIS Handbook’ and ‘Standards Monthly Additions’. This Indian Standard has been developed from Dot: Na. LM 14 ( 0162 ) Amendments Amend No.
Issued Since Puhlicntion Text Affected
Date of Issue
BUREAU
OF INDIAN
STANDARDS
Headquarters: Telegrams: Manaksanstha (Common to all offices)
Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telephones: 323 0131,323 33 75,323 94 02
Telephone
Regional Offices: Central
323 76 17,323 38 41
: Manak Bhavan, 9 Bahadur Shah Zafar Marg
NEW DELHI 110002 Eastern
CALCU’ITA Northern
{ 337 84 86 99,337 85 9120 61 26,337
: l/14 C.I.T. Scheme VII M, V.I.P. Road, Maniktola
700054
: SC0 335-336, Sector 34-A, CHANDIGARH
160022 { 60 38 20 43 25
Southern
: C.I.T. Campus, IV Cross Road, C!lENNAI
Western
: Manakalaya,
Branches
{ 235 02 16,235 04 42 2351519,2352315
600113
E9 MIDC, Marol, Andheri (East) MUMBAI 400093
{ 832 92 78 95,832 91,832 78 58 92
: AHMADABAD.
BANGALORE. BHGPAL. BHUBANESHWAR. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR. PATNA. PUNE. THIRUVANANTHAPURAM. Printed at Simco printing Press, Delhi, India
( Reaffirmed 1998 )
(
~;r+hJl )
Fik7T
Indian Standard HEXAGO~N HEAD BOLTS, S-CREWS A~ND NUTS OF PRODUCT GRADES A AND B PART
1
HEXAGON
( SIZE RANGE
HEAD
BOLTS
Ml ‘6 TO M64 )
( Third Revision ) Second
Reprint
UDC
MANAK
OF BHAVAN,
BAHADUR
NEW DELHI
October 1992
1992
INDIAN 9
1997
621’882’662
QBIS
BUREAU
APRIL
STANDARDS SHAH
ZAFAR
MARG
110002 Price group
4
Bolts,
Nuts and Fastener
NATIONAL
Accessories
Sectional
Committee,
LM 14
FOREWORD
This Indian Standard ( Part 1 ) which is identical with IS0 4014 : 1988 ‘Hexagon head bolts Product grades A and B’ issued by the International Organization for Standardization ( IS0 ) was adopted by the Bureau of Indian Standards on the recommendation of the Bolts, Nuts and Fastener Accessories Sectional Committee ( LM 14 ) and approval of the Li_ght Mechanical Engineering .Division Council. The standard was originally published in 1960 and revised in 1967. Subsequent to the publication of 1967 edition, many changes had been agreed upon at international level which have been reflected in IS 1367 series of standards covering ‘Technical supply conditions for threaded steel fasteners’. Accordingly, the standard was published in 5 parts covering hexagon head bolts, hexagon head screws, hexagon nuts, hexagon thin nuts ( chamfered ) and hexagon thin nuts ( unchamfered ). The second revision of the standard was based on IS0 4014 : 1979 ‘Hexagon head bolts of Product grades A and .By issued by ISO. This third revision has been made by the adoption of latest version of IS0 4014 published in 1988 as ta!t 1. The remaining parts of the standard from Part 2 to Part 5 have also been revised by adoption of corresponding latest version of International Standards. The following major changes have been made in this revision:
a) b) cl d) e)
The range of sizes has been enlarged The range of n,ominal lengths Non-preferred Stainless
to cover sizes from M 1’6 to M64;
has been extended
sizes have been included
steel bojts with property
up to 500 mm;
in separate
classas A2-70
table
in line with
and A2-50
The use of property classes like 4.8, 4.8, 5.8, 6.8 and 9.8 are the agreement between the manufacturer and .
IS0 4014;
have been included; also
permitted
and
subject
to
In the 1967 version of this standard, the width across flats for Ml 0 and Ml 2 size fasteners was specified as 17 mm and 19 mm respectively. However, in the 1983 version this width across flats was brought in line with IS0 4014 : 1979 and specified as 16 mm and 18 mm respectively for Ml 0 and Ml 2 size fasteners. Recognizing the fact that the new width across flat dimensions could not be implemented immediately, the ~Expianatory Note to 1983 version of the standard made a reference to this aspect. However, in the absence of specificcoverage in the standard, the new width across flat dimensions could not be implemented. Recognizing the difficulty of immediate changeover to new width across flats, the Committee felt that definite time frame may begiven to the manufacturer7 for changeover and accordingly, it has been decided that width across flats as per 1967 version, that is, 17~mm and 19 mm for Ml0 and 12 size fasteners shall be permitted till 31 December 1994. It is also understood that some,-.manufacturers are already equipped and manufacturing new width across flat dimensionwnd supplies as per new specifications are encouraged. this period, the manufacture of fasteners as per old versions shall be phased out 1 January 1995, it is expected that the entire fastener industry would have switched new width dimensions across flats and no old width across flats shall be permitted. In the adopted standard, certain terminology and conventions are not identical in Indian Standards; attention is specially drawn to the following: ~a) Wherever the words ‘International Standard’ should be read as ‘Indian Standard’; and
appear,
b) Ccmma ( , ) has been used as a decimal marker while practice is to use point ( . ) as the decimal marker.
referring in Indian
to this
with
those used
standard,
Standards
( Continued
as per During and by over to
they
the current
on third cover )
IS 1364 ( apart 1 ) : 1992 IS0 4014 : 1988
Indian
Standard
HEXAGON HEAD BOLTS, SCREWS AND NUTS OF PRO-DUCT GRADES A A-ND B PART 1
HEXAGON
HEAD
BOLTS
( SIZE RANGE Ml ‘6 TO M64 )
( Third Revision )
0
introduction
This International
1
Standard
is part of the complete
IS0 product
standard
series on hexagon
a)
hexagon
head bolts (IS0 4014, IS0 4015, IS0 4016 and IS0 8765);
b)
hexagon
head screws
c)
hexagon
nuts (IS0
d)
hexagon
flanged
bolts (IS0
e)
hexagon
flanged
screws
f)
hexagon
flanged
nuts (IS0 4161, IS0 7043 and IS0 7044) ;
g)
structural
Scope
bolting
(IS0
drive fasteners.
The series comprises
:
4017, IS0 4018 and IS0 86761;
4032, IS0 4033, IS0 4034, IS0 4035, IS0 4036, IS0 8673, IS0 8674 and IS0 8675);
(IS0
4162 and IS0 8102) ;
; I’
4775, IS0 7411 to IS0 7414 and IS0 7417).
and field of application
This International Standard gives specifications for hexagon head bolts with threads from Ml,6 up to and including M64, of product grade A for threads Ml ,6 to M24 and nominal lengths up to and including 10 d or 150 mm, whichever is shorter and product grade B for threads over M24 or nominal lengths over 10 d or 150 mm, whichever is shorter. If, in special cases, specifications existing International Standards,
1)
other than those listed in this International Standard are required, they should be selected for example IS0 261, ISO 888, IS0 898-1, IS0 965-2, IS0 3506 and IS0 4759-1.
These will form the auojects of future International Standards.
1
from
IS 1364 ( Part 1 ) : 1992 IS0 4014 : 1988
2
References
ISO 225, Fasteners I50
Bolts, screws and nuts -
Symbols and designations of dimensions.
261, IS0 general purpose metric screw threads -
IS0 666, Bolts, screws and studs IS0 898-1, klechanical I50 965-2,
IS0
threads -
Medium
properties
General plan.
Nominal lengths and thread lengths for general purpose bolts and screws.
of fasteners
-
Part 1: Bolts, screws and studs.
general purpose metric screw threads -
Tolerances
-
Part 2: Limits of sizes for general purpose
IS0 3263, Fasteners
-
Acceptance
IS0 3506, Corrosion-resistant
IS0 4753, Fasteners -
Ends
inspection.
stainless steel fasteners
IS0 4642, Threaded components
-
Electroplated
ofparts with
IS0 4759-1, Tolerances for fasteners grades A, B and C.
-
-
Specifications.
coatings. ‘)
external metric IS0
thread.
Part 1: Bolts, screws and nuts with thread diameters
> 1,6 and < 150 mm and product
IS0 6157-1, Fasteners -
Surface discontinuities
-
Part I: Bolts, screws and studs for general requirements. ‘)
IS0 6157-3, Fasteners -
Surface discontinuities
-
Part 3: Bolts, screws and studs for special requirements.
IS0 6633, Mechanical ISO 6392, Fasteners -
1)
bolt and nut
quality.
propertins of fasteners General requirements
-
Bolts, screws, studs and nuts made of non-ferrous
for bolts, screws and nuts.
At present at the stage of draft.
2
metals.
‘)
IS 1364(Partl ):1992 IS0 4014 : 1988
3
Dimensions
NOTE -
Symbols
and descriptions
of dimensions
are specified
in IS0 225.
Dimension
Point must be chamfered or for threads mab be as-rolled (sheared end) (see IS0 4753)
< M4
X underhead
1)
Incomplete
threao
u < 2 p
fillet
in millimetres
Table
1 -
Preferred
threads Dimensions
Thread, d
Ml,6
P’)
0.35 9
2' 3)
b ref.
6 nom.
4
Product
16
18
-
I_
_
~
_
22
_
_
-
_/ 0.2
0.8
0.6
9.2
11.2
13.7
6
8
10
5.82
7.78
0.25
0.4
0.4
0.5
max.
2
2.6
3.1
3.6
4.7
1.6
2
2.5
3
1.46
1.86
2.36
2.86
_
_
4.07
4.57
3.41
4.32
6.45
0.5
0.6
5.7
6.8
4
5
3.82
4.82
5.88
6.01
0.8
1
7.66
_ 1
1.2
8.i
6.88
11.63
8.79
11.05
_
_
1.2
1.4
14.36
11.73
I
,
96
108
_
_
_
73
85
97
109
121
137
153
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.8
0.8
0.8
0.8
0.8
1
1
1
1
17.7
22.4
26.4
33.4
39,4
45.6
52.6
63
71
30
36
42
49
56
64
,’
16
20
24
15.73
19,67
23.67
28.19
33.61
22
27.7
33.25
-
_
29.48
35.38
/
33.53
39.98
_
_
32.95
39.55
50.85
E0.79
3
4
4
12.5
1.1
1.4
1.7
2
2.8
3.5
4
5.3
6.4
7.5
min.
0.975
1.275
1,575
1.875
2,675
3.35
3.85
5.15
6.22
7.32
9.82
12.265
14,785
_
_
max.
1,225
1,525
1.825
2,125
2,925
3.65
4.15
5.45
6.58
7.68
10.18
12,715
15,215
_
_
Product grade B min. max.
Product gradeA min.
-
_
-
_
- 0.68
0.=
min. = max.
A Product gradeB min.
_
_
_
_
_
_
_
1.1
_
_
0.1
0.1
0.1
3.2
4
3,02'
_
1.31
1.87
_
_
_
0.1
0.2
0.2
5
5.5
7
8
3.62
4.82
5.32
6.78
7.78
_
_
_
_
_ _
2.7
2.35
_
_
B
_
3,61
10 3.78
_
0.4
9.71
12.15
14.65
18.28
_
10.29
12.85
15.35
19.12
6.87
8.6
10.35
_
8.51
10.26
12.8
4.35
5.12 _
6,8
0.4
0.6
0.6
_
0.25
_
I
0.8
0.8
13
16
18
24
30
36
12.73
15.73
17.73
23.67
29.67
35.36
_
_
_
23.16
29.16
35
1
22.08
iz?
_
_ j8.6.5
71.3
82.6
93.56
88.18
1
_ 104.85
8
10
12
13
26
30
35
40
-
-
---
_
_
-
-1 _
25.56
29.58
34.5
39.5
26.42
30,42
35.5
40.5
_
_
17.91
1
46
55
65
_
_
53.8
63.1
45
_ 69.45
_
15.46
_ 63.26
55.26
59.95
1
_
47.38
_
22.5
18.7
0,3
_
_
6
6
15
41.38
51.11
26.75
10
_
_
_ 42.75
X.17
3
_
64
22.49
2
6
_
72
16.63
_
_
MW
5.5
5
60
14‘63
20.03
4.5
in millimetres
M66
52
23.48
i7.n
4
3.5
M46
66
19.46
_
M42
54
15.57
_
M36
46
_
_ 2
/
I
M30
3
_
_
_
12
9.76
_ _
_
_ 0.6
0.15
_
44
M24
2.5
38
0.15
0.15
M20
2
30
_
0.25
3.07
26
_
0.25
_
Ml6
1.75
_
max.
2.27
1.5
_
0.15
min.
Ml2
Ml0
_
0.15
nom.
s
1.25
0.15
max.
nom.
0.8
1
0.15
A Product gradeB min.
r
M6
0.1
e
k' 5,
0.7 14
M6
_
_
A
Product grade A
0.5 12
M5
0.1
ProkiuctgradeB min.
k
11
10
M4
0.1
dw
I/
0.4
0.45
M3
min.
= max.
grade:
M2.5
_
4)
c
M2
_ m.71
I,2
75
I 73.1
27.65
24.15
1.6
2
2
85
95
82.8
I
_ 92.8
Product grade A
I
I,and lp6J,7)
lax. min. max. min. &3x. min.
Forsizes
niax. min. max. min. max. min. max. min. max. min. max. min. max. min. max. min.
abovethesteppedline.
marked
thus-,
IS0 4017 is recommended.
I
24
17
23 22 34 -1
27
’
22
11.75 18
27
16.75 23
11.5
19
32
21.75 28
18.5
24 11.25 20
max. min. ma.
min. ma
37
16..
42 -
11,;
!
l6.; 11.; i1.i -
-
120
119.3 120.7 118.25121.75
-._
_
-
_
I
, 96 106 65.5 98 .---.---_-_-__----_
-
106
116
75
95.5 108
85
SO ; 60.5 100
JO.5
36
56
78
46
66
88
56
76
-
197.5 215
400
-
-
397,15402,85
420
-
-
416.6542315
440-
-
436.65443,15
450-
-
4!%,65463.15
480
-
-
500
-
-
-
476.85453.15 496.655a3.15
I
-
1) P = pitch of thread. 2)
For len&hs I”,,,,, < 125 mm.
31 For lengths 126 mm < &,, 4)
For lengths I,,,,, > 2UOmm.
5)
k’tin
6)
IBmx=Ino,-b lsmh
7)
< 200 mm.
= 0.7 kmin
= Ismax
- 5P
I* is the minimum grip length.
NOTE - The pbpular lengths are defined in of lengths I, and lK: -
product grade A above the stepped line, marked thus -
-
product grade 6 below this stepped line.
I II
/I
-
-
-
I II
61.5
76
96
84
47
116
81.5 1bl
67
92
lx3
1. 23
58.5 111
74
SS
72
_ 55,5
I 83
I23
1, 43 108.5 131
94
119
75.5 11 33
43 -.
11 53 128.5 151
114
139
95,5 1: 23
63
11 33 148.5 171
134
159 115,5 1,
12;
83
2lx3 168.5 1' 91
154
179 135,5 II
14;
'03 z 23 168.5 2 11 174 --_ 23 2'u 208.5 2: 31 194
199 155,5 11
16; _
219 175,52l
l8i
'43 21a
-
I
Ed
93
-
II
_ 41.5
I -
77
lo; -
228.5 2! 51
214
239 195.5z
!Oj
248.5 2 71
234
259 215,5 2d
Zi _
268.5 2!31
254
279 235,5 2c
!47
2885
3'I1
274
2%
'67
31
294
319 275.1 5x
308.5
255,52t
314
53s
334
534 5?&
87 _ OJ
J
Table 2 -
Non-preferred
threads dimdnsions
Thread,
d
P’)
M3.5
Ml4
Ml8
r&2
0.6
2
2.5
2.5
13
b ref.
34
_ -
31
40
j
Product
Product
i
Product
grade
grade
I
0.8 24.4
30,4
36.4
42.4
48.6
56.6
67
= max.
3.5
14
18
22
27
33
39
46
52
60
3.32
13.73
17.73
21.67
_
_
_
_
_
_
_
_
17.57
21.48
26.48
32.38
38.36
44.38
51.26
59,26
5.07
19.37
25.34
31,71
_
_
_
_
_
_
1
Product
grade
I
I
91
I
103
115
129
I
145
,
31.35
/
30.14
38
j
37.72
29.56
46.5
-
37.29
/
55.86
-
45,2
1
64.7
-
55.37
-
/
74.2
-
66.44
_
j
83.41
-
76,95
1
-
88,25
99.21
max.
1
3
3
4
6
6
6
8
10
12
no”l. -
2.4
‘3.8
11.5
14
17
21
25
28
33
36
2,275
8.62
11,285
13,785
_
_
_
_
_
_
2,525
8.98
11,175
j
14,215
_
_
_
_
_
_
11.15
I I
13.65
32.5
37,5
I I
_
I
-
-
min.
11.85
-
I I
1.59
_
6.03
-
0.1
= max.
i
-
79
0.2
24,&i
I
23.36
-
F Product
_
20.2
min. nom.
116
j /
15.7
max. A B
102
4.1
min. ~ max.
6
_
90
78
5.5
max.
min.
I
_
0.8
-
69
-
0.2
min.
I
_
’
min. Product
66
_
MM)
0.6
min.
grade A
56
5
0.15
A B
grade
48
M52
4.5
0.4
max.
6.58 Product
60
M45
4
0.15
A B
grade
50
M39
3,5
_
d.
grade
42
M33
/
min. c
Product
3
_
41
nom.
M27
in millimetl
1
7.9
I
7.81
16.65
I
14.35
.~
0.6
I
9.65
I
_
I
9.56
I
11.66
0.6
0.8
I
6
21
27
5.82
20.67
26.67
33.38
-
-
26.16
33
I
M.58
/
I
24.58
I I I
41
/
I I
14.41
_
1 /
25,42
-
I
27.58
I
21.42
1
34
1 I
17.35
I I
/
I
28.42
-
I
17.21
33,5
-
I
I I
19.31
38.5
-
I
-
22.75
I
26.25
1
1
50
60
70
80
90
_
-
_
_
58.8
68.1
78.1
_
1.2
l-6
2
min. 40
49
87.8
grade
A
B
k I
‘* min.
‘E
4 min.
max.
4
7
9
12
14
17
19
22
‘r max.
I I I I I i I
‘5
‘8
‘*
‘8
4
min.
max.
min.
max.
min.
In / max.
For sizes above the stewed
t 16
26
‘P
I5 min.
max.
line, marked
thus-,
‘S
‘g
I.c
‘g
4
‘g
‘*
‘g
min.
max.
min.
max.
min.
max.
min.
max.
IS0
4017 is recommended
j
/
1
I 21
31
’ I
26 36
36
15.5
46
25.5
I
46
56
35.5
56 66
66
45.5
76
55.5
76
86
65.5
5
90
69.5
3
52
100 --_
79.5
3
62
I ’ I
I 80 ’ 90 ---_
-
89.5 --_
72
40
60
99,5
82
50
70
119.5
102
70
90
55.5
134
122
90
110
75.5
39
s
141
129
97
117
82.5
105
66
5 -
161
149
117
137
102.5
125
86
5
181
169
137
157
122.5
145
106
87.5
169
157
177
142,5
165
126
107.5
185
146
78
59
209
177
197
162,5
229
197
217
182.5
166
191
147.5
217
237
202,5
186
211
167.5
195
237
257
222.5
206
231
187.5
215
257
277
242.5
226
251
207.5
235
262.5
246
271
227.5
255
282,5
266
291
247.5
275
302.5
286 306 326
i 11
P = pitch Mthread.
2)
For lengths
31
Forlengths 125 mm
4)
Forlengthsl,,,, > 2CU mm.
5)
k’min
6)
Igmax=I,,om-b
= 0.7
/,,, <
126 mm. < f,,, < 200mm.
kmin
‘srnin = &max - 5p 7)
I,isthe mihimum
NOTE
-
The
grip length.
popular lengths are defined in of lengths I,and $:
_
product
-.
product grade 6 b&w
grade A
above the stepped line,marked this stepped line.
thus - - - -
67.5
127.5 175
IS 1364 ( Part 1 ) : 1992 IS0 4014 : 1988
4
Specifications
and reference
standards
Table
3 -
Specifications
Material
and reference
standards
General
International
requirements
Standard
IS0 6992
Tolerance
6g
Thread International
1
Standards
Class.1)
I
Mechanical
IS0 261. IS0 965-2 d < 3 mm: as agreed 3 mm < d < 39 mm: 5.6.8.8. d > 39 mm: as agreed
International Standards
d < 20 mm: A2-70 20mm
10.9
3 mm < d < 39 mm: IS.0 698-l d < 3mmandd > 39mm: as aareed
properties
d < 39 mm: IS0 3506 d > 39 mm: as agreed
Standard
:A :
B
IS0 4759-l as processed Requirements
Finish
IS0 6639 I
I
For d < 24 mm and I < 10 d or 150 mm2) For d > 24 mm or I > 10 d or 150 mm2)
Product grade Tolerances International
Non-ferrous metal
Stainless steel
Steel
I
for electroplating
are-covered
plain
plain in IS0 4042.
If different electroplating requirements are desired or if requirements finishes, they should be agreed between customer and supplier.
I are needed for other
Limits for surface discontinuities are covered in IS0 6157-1 and IS0 6157-3. For acceptance
Acceptability
procedure,
see IS0 3269.
11 The designation symbols for the property classes according to IS0 898-l can also be used for threads above M39, provided that the finished product has all the properties assigned to the designation symbols in IS0 898-l. 2)
5
Whichever
is shorter.
Designation
Example
for the designation
Hexagon
head bolt IS0
of a hexagon
4014
- Ml2
head
bolt with
thread
M12,
x 80 - 8.8
8
nominal
length
I = 80 mm and property
class 8.8:
( Continued
from
second
cover
)
In this adopted standard, reference appears to certain International Standards for which Indian Standards also exist. The corresponding Indian Standards which are to be substituted in their place~are listed below along with their degree of equivalence for the editions indicated: Corresponding
International Standard
Indian
IS0
225
IS 8535 : 1987 Bolts, screws, nuts and Terminology and nomenclature ( first revision )
IS0
261
IS 4218 Diameter
( Part 2 ) : 1976 pitch combinations
IS0
888
IS 4206 : 1987 lengths for bolts,
IS0
898-l
IS 1367 threaded methods
IS0
965-2
IS 4218 ( Part 6 ) : 1978 Limits of sizes for commercial to 52 mm ) (~first revision )
IS0
Degree of Equivalence
Standard
metric
accessories
screw )
threads:
Identical
-
Part
2
( first revision
Dimensions for nominal lengths screws and studs ( first revision )
and
IS0 metric screw threads bolts and nuts ( diameter
Identical
thread
Technical supply conditions ( Part 3 ) : 1991 properties steel fasteners : Part 3 Mechanical for bolts, screws and studs with full loadability
for and
: Part 6 range
Technically equivalent
Identical
1
Technically equivalent
IS0
3269
Technical supply conditions for tnreaded IS 1367 ( Part 17 ) : steel fasteners : Part 17 Acceptance criteria ( under preparation )
Technically equivalent
IS0
3506
IS 1367 threaded fasteners
( Part 14 ), : 1989 Technical supply steel fasteners : Part 14 Stainless ( second revision )
Technically equivalent
IS0
4042
IS 1367 threaded threaded
Technical supply conditions ( Part 11 ) : coatings steel fasteners : Part 11 Electroplated steel fasteners ( under preparation )
IS0
4753
IS 1368 : 1987 Dimensions metric threads ( third revision
for ends of parts
conditions for steel threaded
with
external
for on
Technically equivalent
IS0
Identical
)
IS0
4759-l
IS 1367 ( Part 2 ) : 1979 Technical threaded steel fasteners : Part 2 Product ( second revisron )
IS0
6157-1
IS 1367 ( Part S/Set 1 ) : Technical supply conditions for threaded steel fasteners : Part 9 Surface discontinuities on bolts, screws and studs, Section 1 General requirements ( under preparation )
Identical
IS0
6157-3
IS 1367 (PartS/Sec2) : Technical supply conditions for threaded steel fasteners : Part 9 Surface discontinuities on bolts, screws and studs, Section 2 Special requirements ( under preparation )
Identical
IS0
8839
IS . . . . ..Mechanical properties and nuts made of non-ferrous
Identical
IS0
8992
IS 1367 ( Part 1 ) : 1980 Technical supply threaded steel fasteners: Part 1 Introduction information ( second revision )
supply grades
conditions for and tolerances
screws, studs of fasteners-Bolts, metals ( under preparation ) conditions ‘for and general
Technically equivalent
Equivalent
ALTERATION In clause 5, the designation of hexagon head bolt may IS 1364 ( Part 1 )-IS0 4014-M12x 80-8’8’ in place of M12x80-8’8’.
be read ‘Hexagon
as ‘Hexagon head bolt
head bolts IS0 4014-
Bureau of Indian Standards BIS -is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications may he reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course ol implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publication), BIS. Review of Indian Standards Amendments are issued to standards as Lhe need arises on the hasis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes arc needed; if the review indicates that changes are needed, it is taken up for revision. s of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring lo the latest issue of ‘BIS Handbook’ and ‘Standards Monthly Additions’. This Indian Standard has been developed from Dot: Na. LM 14 ( 0162 ) Amendments Amend No.
Issued Since Puhlicntion Text Affected
Date of Issue
BUREAU
OF INDIAN
STANDARDS
Headquarters: Telegrams: Manaksanstha (Common to all offices)
Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telephones: 323 0131,323 33 75,323 94 02
Telephone
Regional Offices: Central
323 76 17,323 38 41
: Manak Bhavan, 9 Bahadur Shah Zafar Marg
NEW DELHI 110002 Eastern
CALCU’ITA Northern
{ 337 84 86 99,337 85 9120 61 26,337
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700054
: SC0 335-336, Sector 34-A, CHANDIGARH
160022 { 60 38 20 43 25
Southern
: C.I.T. Campus, IV Cross Road, C!lENNAI
Western
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Branches
{ 235 02 16,235 04 42 2351519,2352315
600113
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BANGALORE. BHGPAL. BHUBANESHWAR. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR. PATNA. PUNE. THIRUVANANTHAPURAM. Printed at Simco printing Press, Delhi, India
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