IS 1363(Part1):1992 IS0 4016 : 1968

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Indian Standard

HEXAGON HEAD BOLTS, SCREWS AND NUTS OF PRODUCT GRADE C

PART 1 HEXAGON HEAD BOLTS

( SIZE RANGE MS TO M64 )

( Third Revision )

First Reprint DECEMBER lSS3

UDC 621’882’622

@ BIS 1992

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

October 1992 Price Group 4.

Bolts, Nuts and Fastener Accessories Sectional Committee, LM 14

NATIONAL FOREWORD

This Indian Standard ( Part 1 ) which is identical with IS0 4016 : 1988 ‘Hexagon head bolts - Product grade C’ issued by the International Organization for Standardization ( IS0 ) was adcpted by the Bureau of Indian Standards on the recommendation of the Bolts, Nuts and Fastener Accessories Sectional Committee ( LM 14 ) and approval of the Light 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 egreed upon at international level which have been reflected in IS 1367 series of standards covering threaded steel fasteners’.

‘Technical supply conditions for Accordingly, the standard was published in 3 parts covering hexagon

head bolts, hexagon head screws and hexagon nuts.

The second revision of the standard was based on IS0 4016 ‘: 1979 ‘Hexagon head bolts of Product grade C’ issued by ISO. This third revision has been made by the adoption of latest version of IS0 4016 published in 1988 as Part 1. The remaining parts of the standard, that is, Parts 2 and 3 have also been revised by adoption of corresponding latest version of international standards ( ISOs). The foHowing major changes have been made in this revision:

a) The range of sizes has been enlarged to cover sizes from M5 to M64;

b) The range of nominal lengths has ‘been extended up to 500 mm;

c) Non-preferred sizes have been included in separate table in line with IS0 4016;

d) The use of property class 3.6 is also permitted subject to the agreement between the manufacturer anq user.

ln 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,% the 1983 version this width across flats was brought in line with IS0 4016 : 1979 and specified as 16 mm and 18 mm respectively for Ml0 and Ml2 size fasteners. Recognizing the fact that the new width across flat dimensions could not be implemented immediately, the Explanatory Note to 1983 version of the standard made a reference to this aspect. However, in the absence of specific coverage in the standard, the new width across flat dimensions could not be implemented. immediate changeover to new width across flats, the

Recognizing the difficulty of Committee felt that definite time frame

may be given to the manufacturers 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 Ml2 size fasteners shall be permitted till 31 December 1994.

It is also understood that some manufacturers are already equipped and manufacturing as per new width across flat dimensions and supplies as per new specifications are encouraged. During this period, the manufacture of fasteners as per old version shall be phased out and by 1 January 1995, it is expected that the entire fastener industry would have switched over to new width across flat dimensions and no old width across flats shall be permitted.

In the adopted standard, certain terminology and conventions are not identical with those used in Indian Standards; attention is specially drawn to the following:

a) Wherever the words ‘International Standard’ appear, referring to this standard, they should be read as ‘Indian Standard’; and

b) Comma ( , ) has been used as a decimal marker while in Indian Standards the current practice is to use point ( . ) as the decimal marker.

( Continued on third cover )

IS 1363 ( Part 1 ) : 1992 IS0 4016 : 1988

Indian Standard

HEXAGON HEAD BOLTS, SCREWS AND NUTS OF PRODUCT GRADE C

PART 1 HEXAGON HEAD BOLTS ( SIZE RANGE M5 TO MB4 )

( Third Revision)

0 Introduction

This International Standard is part of the complete IS0 product standard series on hexagon drive fasteners. The series comprises:

a) hexagon head bolts (IS0 4614, IS0 4615, IS0 4016 and IS0 8765);

b) hexagon head screws (IS0 4017, IS0 4018 and IS0 8676);

c) hexagon nuts (IS0 4032, IS0 4633, IS0 4034, IS0 4635, IS0 4636, IS0 8673, IS0 8674 and IS0 8675);

d) hexagon flanged bolts (IS0 4162 and IS0 8102);

e) hexagon flanged screws; ‘)

f) hexagon flanged nuts (IS0 4161, IS0 7CI43 and IS0 7644);

g) structural bolting (IS0 4775, IS0 7411 to IS0 7414 and IS0 7417).

1 Scope and field of application

This International Standard gives specifications for hexagon head bolts with threads from M5 ?~p to and including M64 of product grade C.

If, in special cases, specifications other than those listed in this International Standard are required, they should be selected from existing International Standards, for example IS0 261, IS0 888, IS0 898-l. IS0 365-2 and IS0 4759-l.

1) These will form the subject of future International Standards.

r’s 1363(Partl ):1992 IS0 4016 : 1969

2 References

IS0 225, Fasteners - Bolts, screws and nuts - Symbols and designations of dimensions.

IS0 261, IS0 geneial purpose metric screw threads - General plan.

IS0 888, Bolts, screws and studs - Nominal lengths and thread lengths for general purpose bolts and screws.

IS0 898-3, MechanicaJ properties of fasteners - Part 1: Bolts, screws and studs.

IS0 W-2, IS0 general purpose metric screw threads - Tolerances - Part 2: Limits of sizes for general purpose bolt and nut threads - Medium quality.

IS0 3269. Fasteners - Acceptance inspection.

IS0 4042, Threaded components - Efectropfated coatings.‘)

IS0 4759-1, Tolerances for fasteners - Part 1: Bolts, screws and nuts with thread diameters > 1,6 and < 150 mm and product grades A, B and C.

IS0 S992, Fasteners - General requirements for bolts, screws, studs and nuts. ‘1

1) At present at the stage of draft.

IS 1363 ( Part 1 ) : 1992 IS0 4016 : 1988

3 Dimensions

NOTE - Symbols and designations of dimensions are specified in IS0 225.

Dimensions in millimetres

End without

special requirements 7

Washer face

permissible

X

3

I t -r/, I

] < a’

Referee datum ford,

___0,1

1) incomplete thread II < 2 P

3

Table 1 - Preferred threads Dimensions in millimetres

M5 M6 M6 Ml0 Ml2 Ml6 M26 M24 M36 M36 M42 M46 M66 M64

0,8 1 1.25 1,5 1,75 2 2,5 3 3,5 4 4.5 5 5.5 6

16 18 22 26 30 38 46 54 66 - - - -

- - _ - - 44 52 60 72 84 96 TO8 - - I I I I I I I I 1 I I I

- _ - - - - _ I 73 1 85 I 97 I 109 I 121 I 137 I 153 1

0.5 0.5 0.6 0.6 0,6 0,8 0,8 0,8 0,8 0,8 1 1 1 1

6 7.2 10.2 12.2 14.7 18.7 24.4 28.4 35.4 42.4 46.6 56.6 67 I 75

5.48 1 6.443 1 858 1 lo.= ( 12,7 1 167 1 20.84 1 24.84 1 30.84 1 37 ) 43 1 49 1 57.2 1 65,2 ds

max.

min. 4.52 1 5.52 1 7.42 1 9,42 ) 11.3 I 15.3 ( 19.16 1 23.16 1 29,16 ( 35 ( 41 I 47 1 54.8 1 62,8

dw min. 6.74 8.74 1 11.47 14,47 16,47 22 27,7 33.25 42.75 51,ll 59,95 1 69.45 78,66 1 88.16

8.63 1 lo,89 1 14.2 1 17,59 1 19.85 1 26.17 1 32.95 1 39.55 1 5685 1 60,79 ( 71,3 1 82,6 1 93,56 1 104.86 e min.

nom.

k min.

max.

k’s) min.

r min.

8 10 13 16 18 24

764 964 12.57 15,57 17.57 23,16

30 36

29.16 35

I,). and lgr3), 7)

46 55 65 75 85 95

45 53,8 63.1 73,l 82,8 92,8

nom. = max. s

min. P

Is In Is ig Is lg Is lg Is Is Is lg I Is 1s lg 1s lg b lg 1s lg 4 lg 4 lg 4 lg 1 s

nin. max. min. max. min. max. min. max. min. max. min. max. min. .max. min. max. min. max. min. max. min. max. min. max. min. max. min. max

5 9

10 14 7 12 For sizes above the stepped line, marked thus -, IS0 4018 is recommended.

r

15 19 12 17

20 24 17 22 11.75 18

25 29 22 27 16,75 23 11,5 19

30 34 27 32 21.75 28 16.5 24

32 37 26,75 33 21.5 29 16.25 25

37 42 31.75 38 26.5 34 21,25 30

36.75 43 31,5 39 26.25 35

41.75 48 36,5 44 31.25 40

51.75 58 46.5 54 41,25 50

56.5 64 51.25 60

66.5 74 61,25 70

71.25 80

81.25 90

50 48,75 51,25

55 53,5 56.5

60 58,5 61,5

65 63,5 66,5-

70 68,5 71,5

89 78.5 81.5

-90 86.25 91.75

100 98,25 101.75

110 108.25 111,75

120 118.25 121.75

27

22

32

42

32

42

52

52

62

72

62

72

82

41,!

51,!

61,!

31 46

41 56

51 66 36.5 54

- - 1) P = pitch of the thread.

2) For lengths I,,, < 125 mm.

3) For lengths125 mm < /non, < 200 mm.

4) For lengths/,,, > 200 mm.

5) k,in = 0.7 k,in

6) (vx,x = /nom - b I smin - -I gmax -5P

71 /g is the minimum grip length.

-

76 86

86 96

96 106

106 116

-_ -

65,5 78 55 70

75.5 88 65 80

85.5 98 75 90

95,5 108 85 100

115,5 128 105 120

135.5 148 125 140

132 147

152 167

40,5 58

50,5 68 36 56

60.5 78 46 66

70.5 88 56 76

90,5 108 76 96

10.5 128 96 116

17,5 135 103 123

37.5 155 123 143

57.5 175 143 163

77,5 195 163 183

97.5 215 183 203

203 223

223 243

243 263

61.5 84

81.5 104 67

88,5 111 74

108.5 131 94

128.5 151 114

149,5 171 134

168,5 191 154

1865 211 174

!08,5 231 194

!28,5 251 214

!49:5 271 234

!69,5 291 254

!88,5 311 274

294

314

334

75 99

119

139

159

179

199

219

239

259

279

299

319

339

359

-

I I

-;_ 75,5 103

95,5 123 77

l15,5 143 97

l35,5 163 117

155,5 183 137

175.5 203 157

195.5 223 177

!15,5 243 197

!35,5 263 217'

!55,5 283 237

!75,5 303 257

!95,5 323 277

fl5,5 343 297

t35,5 363 317

107

127

147

167

187

207

227

247

267

287

307

327

347 -

NOTE - The popular lengths are marked bytheshank lengths.

Ml4

2

34

Ml8

2,5

42

Table 2 - Non-preferred threads

Dimensions in millimetres

M22 NE27 M33 M39 M45 M52 M60

2,5 3 3,5 4 4.5 5 5,5

50 fin - - - - -

rhread (d)

P”

21

b ref 3) 40 48 56 66 78 90 102 116 -

- - 69 79 91 103 115 129 145 4)

c max. 0.6 0.8 0.8 03 03 1 1 1 1

16.7 21.2 26.4 32.4 38.4 45.4 52.6 62,6 71

14.7 18.7 22,84 27,84 34 40 46 53,2 61.2

13,3 17,3 21.16 26.16 32 38 44 50,8 58.8

19,15 24.85 31.35 38 46,55 55,86 64,7 74,2 83.41

22.78 29.56 37,29 45.2 55.37 66,44 76,95 88.25 99.21

max.

max.

min.

dw min.

e min.

nom. 83 I 11.5 I 14 I 17 I 21 I 25 I 28 I 33 I 38 k min. 8.35 1 10.6 13.1 16.1 19.95 I 23.95 26,95 31,75 36.75

9,25 12,4 14.9 17.9 22.05 26.05 29.05 34,25 39.25

5.85 7.42 9,17 11,27 13.97 16.77 18.87 22.23 25,73

0.6 0.6 0.8 1 1 1 1,2 1.6 2

21 27 34 41 Q-l 60 70 80 90 I I I I

-_

20,16 26,16 33 40 49

k’51 min.

r min. ~-

nom. = max. s

min.

I I,$ and 1~6)~ 7)

‘s 1 ‘g 1 4 I I ‘&! ‘s --I- max. min. ‘s 4 I ‘g ‘s ‘g ‘s ‘g 4 ‘g ‘s lg 4 ‘g

max. min. max. min. max. min. max. min. max. min. max. min. max.

For sizes above the steooed line, marked thus -, IS0 4018 is recommended.

min. 1 max. I min. ll0,“. r”lr,. max.

60 58.5 61,5

65 63.5 66.5

70 68.5 71,5

80 78,5 81.5

90 I 88.25 91.75

-100 98.25 101.75

110 108.25 111.75

121,75

132

142

152

164

L

-L 38

48 27.5 40

50

60 35 50

70 45 60

74 49 64 34,5 52

84 59 74 44.5 62

94 69 84 54.5 72 40

104 79 94 64.5 82 50

55.5

65,5

69,5

79,5

89.5

90

110

117

95 115

135

155

175

195

215

235

255

275

295

315

335

355

1 189 / 176 99

119

126

146

166

114

134

141

161

181

84-5

104.5

111.5

131.5

151.5

171.5

102

122

129

55.5 78

75.5 98

82.5 105

102.5 125

.122,5 145

142,5 165

162,5 185

182,5 205

202,5 225

2i2,5 245

242,5 265

262.5 285

124

144

151

70

90

97

117

137

157

177

197

217

237

257

277

84

91

59

66

86.

106

126

146

166

186

206

226

246

266

286

306

326

346

137

157

177

197

217

237

257

277

297

111

131

151

149

167

189

209

229

67.5

87.5

107,5

127.5

147.5

167.5

191,5

211,5

171

191

211

231

251

271

291

311

331

351

371

187,5

207.5

227.5

282.5

302,5

305

325

247.5

267.5

287,5

307.5

327.5 L

1) P = pitch of the thread.

q 2) For lengths loom < 125 mm.

3) For lengths 125 mm < /nor,, < 200 mm.

4) For lengths I,,,.,, > 200 mm.

5) k&in = 0~7 ka+n

6) lgmx=lnom-b

lsmin = Igmax - 5p

7) /* is the minimum grip length.

NOTE - The popular lengths are marked by the shank lengths.

IS 1363 ( Part 1 ) : 1992 IS0 4016 : 1988

4 Specifications and reference standards

Table 3 - Specifications and reference standards

Material Steel

General requirements

International Standard I

IS0 8992

Thread Tolerance 8g

International Standards IS0 261, IS0 665-2

Mechanical properties

Class I)

International Standards

d < 39 mm: 3.6, 4.6, 4.8 d > 39 mm: as agreed

d < 39 mm: IS0 999-l d > 39 mm: as aoreed

I Tolerances Product grade C

International Standard IS0 4759-l

as processed

Finish Requirements for electroplating are covered in IS0 4042.

If different electroplating requirements are desired or if requirements are needed for other finishes, they should be agreed between customer and supplier.

Acceptability For acceptance procedure, see IS0 3269.

1) The designation symbols for the property classes according to IS0 898.1 can also be used for thread sizes above M39, provided that the finished product has all the properties assigned to the designation symbols in IS0 999-l.

5 Designation

Example for the designation of a hexagon head bolt with thread M12, nominal length I = 80 mm and property class 4.6:

Hexagon head bolt IS0 4016 - Ml2 x 60 - 4.6

8 Reprography Unit, BIS, New Delhi, India

( 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:

International Corresponding hdian Standard Degree of Standard Equivalence

IS0 225 Identical

IS0 261 Technically equivalent

IS0 888 Identical

IS0 898-l Identical

IS 8535 : 1987 Bolts, screws, nuts and accessories - Terminology and nomenclature ( first revision )

IS 4218 ( Part 2 ) : 1976 IS0 metric screw threads: Part 2 Diameter pitch combinations ( first revision )

IS 4206 : 1987 Dimensions for nominal lengths and thread lengths for bolts, screws and studs ( first revision )

IS 1367 ( Part 3 ) : 1991 Technical supply conditions for threaded steel fasteners : Part 3 Mechanical properties and methods for bolts, screws and studs with full loadability

IS 4218 ( Part 6 ) : 1978 IS0 metric screw threads : Part 6 Limits of sizes for commercial bolts and nuts ( diameter range 1 to 52 mm ) ( first revision )

IS0 965-2

IS0 3269

IS0 4042

is0 4759-l

IS0 8992

ALTERATION

IS 1367 ( Part 17 ) : Technical supply conditions for threaded steel fasteners : Part 17 Acceptance criteria ( under,preparation )

IS 1367 ( Part 11 ) : Technical supply conditions for threaded steel fasteners : Part 11 Electroplated coatings on threaded steel fasteners ( under preparation )

IS 1367 ( Part 2 ) : 1979 Technical supply conditions for threaded steel fasteners : Part 2 Product grades and tolerances ( second revision )

IS 1367 ( Part 1 ) : 1980 Technical supply conditions for threaded steel fasteners: Part 1 Introduction and general information ( second revision )

Technically equivalent

Technically equivalent

Technically equivalent

Technically equivalent

Equivalent

In clause 5, the designation of hexagon head bolt may be read as ‘Hexagon head bolt IS 1363 ( Part 1 )-IS0 4016-Ml2x 86-4’6 in place of ‘Hexagon head bolt IS0 4016- M12x 80-4’6’.

B~reaa of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standurds Acf, 1986 to promote haimonious development of the activities of standardization, marking and quality certification of goods and attending to connected miitters in the country.

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Revialon of Indian Standard0

Indian Standards are reviewed periodically and revised, when necessary and amendments, if any, are issued from time to time. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition. sent to BIS giving the following reference:

Comments on this Indian Standard may be

Dot : No. LM 14 ( 0159 )

Ameadmenb hoed Siam Pablhtioo

Amend No. Date of Issue Text Affected

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Reprography Unit, BIS, New Delhi, India