Maintenance
57
Torques for bolted
connections
* Values in brackets: spanner size for locking bolts and nuts with
toothed flange.
N
OTE
•
The values listed apply to dry or slightly lubricated connections.
•
Do not use galvanized (plated) bolts and nuts without grease.
•
When using a stiff grease, reduce the value in the table with 10%.
•
When using (self-)locking bolts and nuts increase the value in the
table with 10%.
Thread
Torque value
Spanner
size*
8.8
10.9
12.9
Nm
mm
M3
1.3
1.8
2.1
6
M4
2.9
4.1
1.9
7
M5
5.7
8.1
9.7
8
M6
9.9
14
17
10
M8
24
34
41
13
M10
48
68
81
17 (15)
M12
85
120
145
19 (17)
M14
135
190
225
22 (19)
M16
210
290
350
24 (22)
M18
290
400
480
27
M20
400
570
680
30
M22
550
770
920
32
M24
700
980
1180
36
M27
1040
1460
1750
41
M30
1410
1980
2350
46
M33
1910
2700
3200
50
M36
2450
2546
3063
55
M39
3200
4500
5400
60