Universal Speedtiller Operator Safety Manual

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Metric Bolt Torque table

Metric Bolt Torque Table Estimated with clamp load as 75% of proof load as specified in ISO 898-1

8.8

10.9

12.9 Socket Head Cap Screw

Property Class

Minimum Tensile Strength MPa

M6 - M16: 800 M20 - M30: 830

1040

1220

Nominal Size and Thread Pitch

Bolt Torque Specs in Foot Pounds or (Inch Pounds)

Dry

Lubed

Dry

Lubed

Dry

Lubed

M5 x 0.80

(54)

(41)

(78)

(59)

(91)

(68)

M6 x 1.00

(92)

(69)

(133)

(99)

(156)

(116)

M7 x 1.00

(156)

(116)

(222) (167)

(260)

(195)

M8 x 1.25

(225)

(169)

(333) (242)

(377)

(284)

M10 x 1.50

37

28

53

40

62

47

M12 x 1.75

65

49

93

69

108

81

M14 x 2.00

104

78

148

111

173

130

M16 x 2.00

161

121

230

172

269

202

M18 x 2.50

222

167

318

238

372

279

M20 x 2.50

314

235

449

337

525

394

M22 x 2.50

428

321

613

460

716

537

M24 x 3.00

543

407

776

582

908

681

M27 x 3.00

796

597

1139

854

1331

998

M30 x 3.50

1079

809

1543

1158

1804

1353

M33 x 3.50

1468

1101

2101

1576

2455

1842

M36 x 4.00 2366 Lubed means cleaned dry bolts lubricated with a standard medium viscosity machine oil. Lubricate all contact areas of the bolts and washers. Lubricating the bolts is the suggested method. Thread Engagement 1886 1415 2699 2024 3154

Figure 35

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