Crown RC 5500 series - Torque Chart - Metric Hex Head Cap Screws and Nuts; Torque Chart - Metric Hex Socket Countersink Head Screws

LUBRICATION & ADJUSTMENT
Metric Torque Values
74
M1.9-06.6-002
02 Rev. 11/08
Torque Chart - Metric Hex Head Cap Screws and Nuts
Thread Diameter
& Pitch
Tightening Torque Nm (ft lb)
Class 8.8 Class 10.9 Class 12.9
M5 x 0.80 5 - 8 (4 - 6) 7 - 8 (5 - 6) 8 - 10 (6 - 7)
M6 x 1.00 8 - 10 (6 - 7) 12 - 14 (9 - 10) 15 - 16 (11 - 12)
M8 x 1.25 20 - 25 (15 - 18) 28 - 31 (21 - 23) 34 - 37 (25 - 27)
M10 x 1.50 39 - 43 (29 - 32) 56 - 61 (41 - 45) 68 - 75 (50 - 54)
M12 x 1.75 71 - 76 (52 - 56) 100 - 107 (73 - 79) 119 - 127 (88 - 94)
M14 x 2.00 113 - 122 (83 - 90) 159 - 171 (117 - 126) 190 - 205 (140 - 151)
M16 x 2.00 175 - 190 (129 - 140) 247 - 267 (182 - 197) 296 - 320 (218 - 236)
M20 x 2.50 340 357 (251 - 271) 479 - 518 (353 - 382) 574 - 621 (423 - 458)
M24 x 3.00 587 - 635 (433 - 468) 824 - 892 (608 - 658) 990 - 1071 (730 - 790)
M30 x 3.50 1175 - 1274 (867 - 940) 1654 - 1792 (1220 - 1322) 1985 - 2150 (1464 - 1586)
Note: Torque values called out in the maintenance section of this manual will take precedence over torque
values found on this page.
Torque Chart - Metric Hex Socket Countersink Head Screws
Thread Diameter
& Pitch
Tightening Torque Nm (ft lb)
Class 8.8 Class 10.9 Class 12.9
M5 x 0.80 4 - 7 (3 - 5) 5 - 8 (4 - 6) 7 - 10 (5 - 7)
M6 x 1.00 7 - 10 (5 - 7) 9 - 12 (7 - 9) 11 - 14 (8 - 10)
M8 x 1.25 16 - 19 (12 - 14) 23 - 26 (17 - 19) 27 - 30 (20 - 22)
M10 x 1.50 31 - 34 (23 - 25) 45 - 49 (33 - 36) 54 - 58 (40 - 43)
M12 x 1.75 56 - 60 (41 - 44) 79 - 84 (58 - 62) 94 - 102 (69 - 75)
M14 x 2.00
M16 x 2.00 124 - 146 (99 - 108) 190 - 206 (140 - 152) 228 - 247 (168 - 182)
M20 x 2.50 259 - 281 (191 - 207) 363 - 395 (268 - 291) 437 - 473 (322 - 349)
M24 x 3.00 416 - 451 (307 - 333) 586 - 635 (432 - 468) 702 - 762 (518 - 562)
M30 x 3.50
Note: Torque values called out in the maintenance section of this manual will take precedence over torque
values found on this page.
Crown 1989 PF8514-2 Rev. 11/08