LEMKEN Juwel 7 - Tightening Torques; General Information; Bolts and Nuts Made of Steel

Maintenance and repairs
86
14.4 Tightening torques
14.4.1 General information
 Once loosened, secure self-locking nuts against self-loosening by
 exchanging the nuts with new self-locking nuts.
 using safety washers.
 using thread-locking compounds, such as Loctite.
The following tightening torques refer to screw threaded fittings
not specifically mentioned in these operating instructions. Special
tightening torques are indicated in the text.
14.4.2 Bolts and nuts made of steel
Diameter
Strength category
8.8
[Nm*]
10.9
[Nm*]
12.9
[Nm*]
M 6 9,7 13,6 16,3
M 8 23,4 32,9 39,6
M 10 46,2 64,8 77,8
M 12 80,0 113 135
M 14 127 178 213
M 16 197 276 333
M 20 382 538 648
M 24 659 926 1112
M 30 1314 1850 2217
*μ
g
= 0,12