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Torque Values for Metric Thread Fasteners With Lubricated
*
or Plated Threads
†
Thread
Diameter–Pitch
Class 8.8 Bolt Class 8 Nut Class 10.9 Bolt Class 10 Nut
Torque: lbf·ft (N·m) Torque: lbf·ft (N·m)
f230010
8.8
f230011
8
f230012
10.9
f230013
10
M6 5 (7) 7 (9)
M8 12 (16) 17 (23)
M8 x 1 13 (18) 18 (24)
M10 24 (33) 34 (46)
M10 x 1.25 27 (37) 38 (52)
M12 42 (57) 60 (81)
M12 x 1.5 43 (58) 62 (84)
M14 66 (89) 95 (129)
M14 x 1.5 72 (98) 103 (140)
M16 103 (140) 148 (201)
M16 x 1.5 110 (149) 157 (213)
M18 147 (199) 203 (275)
M18 x 1.5 165 (224) 229 (310)
M20 208 (282) 288 (390)
M20 x 1.5 213 (313) 320 (434)
M22 283 (384) 392 (531)
M22 x 1.5 315 (427) 431 (584)
M24 360 (488) 498 (675)
M24 x 2 392 (531) 542 (735)
M27 527 (715) 729 (988)
M27 x 2 569 (771) 788 (1068)
M30 715 (969) 990 (1342)
M30 x 2 792 (1074) 1096 (1486)
*
Sterling recommends that all plated and unplated fasteners be coated with oil before installation.
†
Use these torque values if either the bolt or nut is lubricated or plated (zinc-phosphate conversion-coated,
cadmium-plated, or waxed).
Table 3, Torque Values for Metric Thread Fasteners With Lubricated or Plated
Threads
General Information 00
Torque Specifications Tables: 00–03
Acterra Maintenance Manual, January 2007 00/5