Usage instructions Adapter & Adaptation
37
12 Appendix: Tightening torques and securing details
The following table shows the tightening torques for shaft screws with a metric control thread (valid if
the drawing or assembly instructions do not state different values!):
Dimension
Tightening torque Ma in Nm depending on the screw strength
Strength 8.8
Strength 10.9
M4
2.1
3.1
M5
4.2
6.1
M6
7.3
11
M8
17
26
M10
34
51
M12
59
87
M10 x 1
36
53
M12x1.25
64
93
M27x1.5
70
–
Securing details: All screws on PRO ACTIV products should be secured with thread lock fluid "medium
strength" (e.g. Weicon AN302-43), where there are no securing clamps on the screw connections
present or there is a lubrication requirement with grease or copper paste.
