Maintenance - General Information 11
Tightening torques 11.2
Original Operating Instructions 150000802_00_en 55
11.2 Tightening torques
Metric thread screws with control thread
INFORMATION
The table does not apply to countersunk screws with hexagon socket in case the countersunk
screw is tightened via hexagon socket.
DV000-001
X Thread size 1 Strength class on screw head
X Strength class
5.6 8.8 10.9 12.9
Tightening torque (Nm)
M4 3.0 4.4 5.1
M5 5.9 8.7 10
M6 10 15 18
M8 25 36 43
M10 29 49 72 84
M12 42 85 125 145
M14 135 200 235
M16 210 310 365
M20 425 610 710
M22 571 832 972
M24 730 1,050 1,220
M27 1,100 1,550 1,800
M30 1,450 2,100 2,450
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