20
00 0290 395 0 - RHB C 490-C 370 - 03/09
1 Introduction
Torque settings
44966
14051
Tightening torques for metric fine threads
The tightening torques specified below apply only if:
– a coefficient of friction of µ tot = 0.14 is reached in
connection with thread grease.
To achieve this, surface protection such as
A3C+L, Dacromet or Termosil is recommended.
– no other tightening torque is specified in the
descriptive text.
– no additional screw locking such as microencap-
sulated bolts or liquid locking compound is used.
Tightening torque in Nm for a coefficient of friction
µ tot = 0.14
Bolts and nuts
Property class
8.8
10.9
12.9
Dimensions
Hex. bolts
ISO 8765, ISO 8876
Hex. nuts
ISO 4032
M 8 x 1
26
38.5
45
M 10 x 1
54
79
92.5
M 10 x 1.25
51
74.5
88
M 12 x 1.25
90.5
134
156
M 12 x 1.5
87
128
150
M 14 x 1.5
143
210
246
M 16 x 1.5
219
323
378
M 18 x 1.5
331
470
551
M 18 x 2
313
446
522
M 20 x 1.5
459
655
766
M 22 x 1.5
622
886
1037
M 24 x 1.5
809
1152
1348
M 24 x 2
778
1108
1297
M 27 x 1.5
1173
1672
1956
M 27 x 2
1135
1617
1892
M 30 x 2
1580
2251
2634
M 33 x 2
2116
3015
3528
M 36 x 2
2773
3951
4623
M 39 x 2
3557
5067
5930
