00-10
STANDARD TIGHTENING TORQUES FOR NUTS AND
BOLTS
The tightening torques for certain specific components and special tightening methods are indicated in the
relative assembly paragraphs.
★
The tightening torques indicated below refer to bolts and nuts assembled without lubrication and, where ap-
plicable, with anaerobic threadlocking compound.
The values apply to tightening on steel or cast iron components; for soft materials such as aluminium, copper,
plastic, sheet metal or panels, the indicated tightening torques must be reduced by 50%
.
BOLT SIZE
BOLT CLASS
8.8
10.9
12.9
Nm
lb.ft.
Nm
lb.ft.
Nm
lb.ft.
C
O
AR
SE T
H
RE
AD
M6x1
8.0 – 8.8
5.9 – 6.5
11.8 – 13.0
8.7 – 9.6
13.8 – 15.2
10.2 – 11.2
M8x1.25
19.4 – 21.4
14.3 – 15.8
28.5 – 31.5
21.0 – 23.2
33.3 – 36.9
24.5 – 27.2
M10x1.5
38.4 – 42.4
28.3 – 31.2
56.4 – 62.4
41.6 – 46.0
67.4 – 74.4
49.7 – 54.8
M12x1.75
66.5 – 73.5
49.0 – 54.2
96.9 – 107
71.4 – 78.9
115 – 128
84.8 – 94.3
M14x2
106 – 117
78.1 – 86.2
156 – 172
115.0 – 126.8
184 – 204
135.6 – 150.3
M16x2
164 – 182
120.9 – 134.1
241 – 267
117.6 – 196.8
282 – 312
207.8 – 229.9
M18x2.5
228 – 252
168.0 – 185.7
334 – 370
246.2 – 272.7
391 – 432
288.2 – 318.4
M20x2.5
321 – 355
236.6 – 261.6
472 – 522
347.9 – 384.7
553 – 611
407.6 – 450.3
M22x2.5
441 – 487
325.0 – 358.9
647 – 715
476.8 – 527.0
751 – 830
553.5 – 611.7
M24x3
553 – 611
407.6 – 450.3
812 – 898
598.4 – 661.8
950 – 1050
700.2 – 773.9
M27x3
816 – 902
601.4 – 664.8
1198 – 1324
882.9 – 975.8
1419 – 1569
1045.8 – 1156.4
FI
NE
T
H
R
E
AD
M8x1
20.8 – 23.0
15.3 – 17.0
30.6 – 33.8
22.6 – 24.9
35.8 – 39.6
26.4 – 29.2
M10x1.25
40.6 – 44.8
29.9 – 33.0
59.7 – 65.9
44.0 – 48.6
71.2 – 78.6
52.5 – 57.9
M12x1.25
72.2 – 79.8
53.2 – 58.8
106 – 118
78.1 – 87.0
126 – 140
92.9 – 103.2
M12x1.5
69.4 – 76.7
51.1 – 56.5
102 – 112
75.2 – 82.5
121 – 134
89.2 – 98.8
M14x1.5
114 – 126
84.0 – 92.9
168 – 186
123.8 – 137.1
199 – 220
146.7 – 162.1
M16x1.5
175 – 194
129 – 143
257 – 285
189.4 – 210.0
301 – 333
221.8 – 245.4
M18x1.5
256 – 282
188.7 – 207.8
375 – 415
276.4 – 305.9
439 – 485
323.5 – 357.4
M20x1.5
355 – 393
261.6 – 289.6
523 – 578
385.5 – 426.0
611 – 676
450.3 – 498.2
M22x1.5
482 – 532
355.2 – 392.1
708 – 782
521.8 – 576.3
821 – 908
605.1 – 669.2
M24x2
602 – 666
443.7 – 490.8
884 – 978
651.5 – 720.8
1035 – 1143
762.8 – 842.4
STANDARD TIGHTENING TORQUES FOR NUTS AND BOLTS
