mandoteX – Maintenance
8.6 Bolt torque
Metric ISO thread
The guide values for bolt tightening torque for achie-
ving the highest permissible pre-tension for metric
ISO thread are specified in Nm in the table.
Total friction coefficient μ
tot
= 0,12
Diameter
[mm]
[mm]
Torque for screw
quality 10.9
[Nm]
M 4
7
3
4
M 5
8
4
7
M 6
10
5
12
M 8
13
6
25
M 10
17
8
50
M 12
19
10
100
M 16
24
14
220
M 20
30
17
400
M 24
36
19
600
The table shows the prescribed values.
Knowledge of the applicable guidelines and configu-
ration criteria are the prerequisites.
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