A Tightening torques
A.1 General information about bolted connections
1. Identify screw connections.
n Check identication marking on the screw and nut if necessary.
n Check the description in the spare-parts list.
2. Secure screw connections with once loosened self-locking nuts
against self-loosening. Use one of the following measures:
n Use new self-locking nuts.
n Use lock washers.
n Use locking compound (e.g. Loctite).
INFORMATION
The following tightening torques refer to screw con‐
nections not specically mentioned in these operating
instructions. Special tightening torques are indicated in
the text.
A.2 Screws and nuts made of steel
Tightening torque [Nm]
according to strength category
Diameter 8.8 10.9 12.9
M6 9.7 13.6 16.3
M8 23.4 32.9 39.6
M10 46.2 64.8 77.8
M12 80.0 113 135
M14 127 178 213
M16 197 276 333
M20 382 538 648
M24 659 926 1112
M30 1314 1850 2217
Tightening torques
en-GB | Item no. 17513597 | BA 02/05-2022 124
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