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Use and maintenance
40
MAINTENANCE INFORMATION
7
Nuts and bolts tightening torques chart
Nuts and bolts tightening torques
Thread
diameter
Thread
pitch (mm)
Resistance class
8.8 (Nm)
Resistance class
10.9 (Nm)
Resistance class
12.9 (Nm)
M 4
0,7
2.7
3.8
4.6
M 5
0,8
5.5
8.0
9.5
M 6
1
9.5
13.0
16.0
M 8
1,25
23.0
32.0
39.0
M 10
1,5
46.0
64.0
77.0
M 12
1,75
80.0
110.0
135.0
M 14
2
125.0
180.0
215.0
M 16
2
195.0
275.0
330.0
M 18
2,5
270.0
390.0
455.0
M 20
2,5
385.0
540.0
650.0
M 22
2,5
510.0
720.0
870.0
M 24
3
660.0
930.0
1100.0
M 27
3
980.0
1400.0
1650.0
