
Tightening torque
Use the torque values given in the below table, unless otherwise specified.
Electrical connections
Torque
Bolt and nuts
Brass (N.m)
Steel: A2-70/A4-70/8.8 (N.m)
-
0.9
M3
-
2.3
M4
-
4.5
M5
5.0
8.0
M6
12
20
M8
25
40
M10
40
70
M12
60
110
M14
90
170
M16
120
240
M18
Mechanical connection
1)
Torque
Bolt and nuts
A2-70/A4-70
Quality 8.8
0.85
1.21
M3
0.80
2.78
M4
1.60
5.5
M5
2.80
9.5
M6
6.8
23
M8
14
46
M10
24
79
M12
37
127
M14
56
198
M16
81
283
M18
114
402
M20
1) Not applicable to threaded inserts
54 Maintenance