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HSS Nut & Bolt

HSS Nut & Bolt
HSS Nut & Bolt
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Product Code : 70
Product Description

Table 1 : P.F. Range of High Strength Structural Fasteners

Product

Specification

Size

Threads

Mechanical Properties

High Strength Structural Bolts

ISO: 7412
IS : 3757

M16 to M36

Metric Coarse: 6g ISO: 261, ISO: 965 IS: 4218

Property Class 8.8 or 10.9 ISO: 898/1 IS: 1367, Part 3

High Strength Structural Nuts

ISO: 4775
IS : 6623

M16 to M36

Metric Coarse: 6H ISO: 261, ISO: 965 IS: 4218

Property class 8 or 10 ISO: 898/2 IS: 1367, Part 6

Hardened and Tempered Washers

ISO:7415
IS : 6649

M16 to M36 (Pain Hole, Circular)

-

Hardness HRC 35 - 45

P.F. High Strength Structural Fasteners:

These are large series hexagon bolts nuts and washers available in the range shown in Table 1.

The bolts are having short thread lengths, suitable for use in both friction type and bearing type structural steel joints.


P.F. High Strength structure Bolts, Nuts and Washers in Friction Grip Joints:

The use of high strength structural fasteners in friction grip joints has been one of the most important developments in structural engineering over the last about four decades.

It provides a simple method of transmitting loads through a structural joint by the friction on the contact face developed through the high clamping force from correctly tightened high strength bolts and nuts.

The bolts are fitted in clearance holes and since the joint is designed to resist slip, they are not subject to bearing or shear forces and thus remain in virtually static tension throughout their working life, with fluctuating loads having very little, if any, effect on bolt stress.

The head dimensions (across flat sizes) of H.S.S. Bolts and Nuts are one step higher than those of the normal hexagon bearing pressure under the head of H.S.S. Bolts will thus be necessarily lower than that of the conventional hexagon head bolts.

Indentation of the hard bolt head into softer structural steel in therefore prevented.

P.F. High strength structural fasteners in friction grip joints are ideal for use on time-bound projects. Over the conventional methods of riveting or welding, they offer the following advantages:

Reliability:

Once tightened, the bolts will remain tight and maintain the permanent strength of the joint. Absence of heavy stress concentration due to absence of bearing between bolts and plates. As bolts are in tension, it does not permit loosening, thus making it most ideal where vibrations are involved.

Economy:

Fewer high strength bolts are required than M.S. Bolts and rivets. Drilling of close tolerance holes is not required. Overall weight of the structure will be very light.


Simplicity:

A minimum of skill is required in tightening and the operators need only to follow a few simple rules.


Convenience:

Whether in the workshop or at site, H.S.S. Bolts enable joints to be made easily. Welding of site splices can be eliminated, avoiding the difficulties of welding in adverse weather conditions. Absence of pneumatic hammers used in riveted joints reduce noise level considerably.


Table 2 : P.F. High Strength Structural Bolts – Dimensions

Thread Size

M16

M20

(M22)

M24

(M27)

M30

M36

Pitch

2.0

2.50

2.50

3.00

3.00

3.50

4.00

B

Max.

16.70

20.84

22.84

24.84

27.84

30.84

37.00

Min.

15.30

19.16

21.16

23.16

26.16

29.16

35.00

da

Max.

18.70

23.24

25.24

27.64

30.40

33.40

39.40

W

Max.

27.00

34.00

36.00

41.00

46.00

50.00

60.00

Min.

26.16

33.00

35.00

40.00

45.00

49.00

58.80

C

Min.

29.56

37.29

39.55

45.20

50.85

55.37

66.44

H

Max.

10.75

13.40

14.90

15.90

17.90

19.75

23.55

Min.

9.25

11.60

13.10

14.10

16.10

17.65

21.45

R

Min.

0.60

0.80

0.80

1.00

1.20

1.20

1.50

T

T1 Ref.

31

36

38

41

44

49

56

T2 Ref.

38

43

45

48

51

56

63


Table 3 : P.F. High Strength Structural Nuts – Dimensions

Thread Size

M16

M20

(M22)

M24

(M27)

M30

M36

Pitch


2.0

2.50

2.50

3.00

3.00

3.50

4.00

W

Max.

27.00

34.00

36.00

41.00

46.00

50.00

60.00

Min.

26.16

33.00

35.00

40.00

45.00

49.00

58.80

C

Min.

29.56

37.29

39.55

45.20

50.85

55.37

66.44

H

Max.

17.10

20.70

23.60

24.20

27.60

30.70

36.60

Min.

16.40

19.40

22.30

22.90

26.30

29.10

35.00

Weight Kg./ 1000 Pgs.

60.4

115.3

142.8

197.7

282.3

365.0

281.8


Table 4 : Grip Lengths and Weight of Bolts (Kgs per 1000 pcs.)

Dia

M16

M20

(M22)

M24

(M27)

M30

M36

L

GI

Wt.

GI

Wt.

GI

Wt.

GI

Wt.

GI

Wt.

GI

Wt.

GI

Wt.

40

10 to 14

102.8













45

15 to 19

110.7

11 to 15

180.3











50

20 to 24

118.6

16 to 20

192.6

12 to 16

252.0









55

25 to 29

126.5

21 to 25

205.0

17 to 21

266.9

15 to 19

337.4







60

30 to 34

134.4

26 to 30

217.3

22 to 26

281.8

20 to 24

352.2

17 to 21

480.9





65

35 to 39

142.3

31 to 35

229.6

27 to 31

296.7

25 to 29

372.9

22 to 26

503.4





70

40 to 44

150.2

36 to 40

241.9

32 to 36

311.6

30 to 34

390.7

27 to 31

525.8

24 to 28

672.5



75

45 to 49

158.1

41 to 45

254.3

37 to 41

326.6

35 to 39

408.4

32 to 36

548.3

2933

700.3

23 to 27

1089.1

80

50 to 54

166.0

46 to 50

266.6

42 to 46

341.5

40 to 44

426.2

37 to 41

570.8

3038

728.0

28 to 32

1129.0

85

55 to 59

173.9

51 to 55

278.9

47 to 51

356.4

45 to 49

443.9

42 to 46

593.2

3943

755.7

33 to 37

1169.0

90

60 to 64

181.7

56 to 60

291.3

52 to 56

371.3

50 to 54

461.7

47 to 51

615.7

4448

783.5

38 to 42

1209.0

95

65 to 69

189.6

61 to 65

303.6

57 to 61

386.2

55 to 59

479.4

52 to 56

638.2

4953

811.2

43 to 47

1248.9

100

70 to 74

197.5

66 to 70

315.9

62 to 66

401.2

60 to 64

497.2

57 to 61

660.7

5458

839.0

48 to 52

1288.9

110

75 to 84

211.4

71 to 80

337.7

67 to 76

427.8

65 to 74

528.5

62 to 71

685.6

5968

888.4

53 to 62

1362.0

120

85 to 94

227.2

81 to 90

362.4

77 to 86

457.7

75 to 84

564.1

72 to 81

730.6

6978

943.9

63 to 72

1441.9

130

95 to 104

243.0

91 to 100

387.0

87 to 96

487.5

85 to 94

599.6

82 to 91

775.5

7988

999.4

73 to 82

1521.8

140

105 to 114

258.8

101 to 110

411.7

97 to 106

517.3

95 to 104

635.1

92 to 101

820.5

8998

1054.9

83 to 92

1601.7

150

115 to 124

274.6

111 to 120

439.3

107 to 116

547.2

105 to 114

670.6

102 to 111

865.4

99108

1110.4

93 to 102

1681.6

160

125 to 134

290.3

121 to 130

461.0

117 to 126

577.0

115 to 124

706.1

112 to 121

910.4

109118

1165.8

103 to 112

1761.5

170

135 to 144

306.1

131 to 140

485.7

127 to 136

606.9

125 to 134

741.6

122 to 131

955.3

119128

1121.3

113 to 122

1841.4

180

145 to 154

321.9

141 to 150

510.3

137 to 146

636.7

134 to 144

777.1

132 to 141

1000.2

129138

1276.8

123 to 132

1921.3

190

155 to 164

337.7

151 to 160

535.0

147 to 156

666.5

145 to 154

812.6

142 to 151

1045.2

139148

1332.3

133 to 142

2001.2

200

165 to 174

353.5

161 to 170

559.6

157 to 166

694.4

155 to 164

848.2

152 to 161

1090.2

149158

1387.8

143 to 152

2081.1

210









162 to 171

1135.2

159168

1443.3

153 to 162

2161.0

220









172 to 181

1180.1

169178

1498.8

163 to 172

2240.9

230









182 to 191

1225.0

179188

1554.3

173 to 182

2320.8

240









192 to 201

1270.0

189198

1609.8

183 to 192

2400.7

250









202 to 211

1314.0

199208

1665.3

193 to 202

2480.6

260









212 to 221

1359.9

209218

1720.7

203 to 212

2560.5

270









222 to 231

1404.9

219228

1776.2

213 to 222

2640.4

280









232 to 241

1449.8

229238

1831.7

223 to 232

2720.3

290









242 to 251

1493.9

239248

1887.2

233 to 242

2800.2

300









252 to 261

1538.9

249258

1942.7

243 to 252

2880.1


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PANCHSHEEL FASTENERS PVT. LTD.
" An ISO 9001 : 2008 Certified Company "
5008, Bazar Sirkiwalan, Jaisav Place, Hauz Qazi, Delhi - 110006, India
Phone : +918068092970
Fax : 91-11-23212344
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