General tightening torques for screw joints
OPM 200 en-GB 116
© Scania CV AB 2020, Sweden
General tightening torques
for screw joints
Hexagon screws, hexagon
socket screws, Torx screws,
hexagon nuts
Metric thread. Strength class 8.8/8.
Flange screws with hexago-
nal head and hexagonal
flange nuts
Metric thread. Strength class 8.8/8.
Thread
Tightening torque
Nm Lb-ft
M4 2.9 21
M5 6 4
M6 9.5 7
M8 24 18
M10 47 35
M12 84 62
M14 135 100
M16 210 155
M18 290 214
M20 420 310
M22 580 428
M24 730 538
Thread
Tightening torque
Nm Lb-ft
M5 6.7 5
M6 10.2 8
M8 26 19
M10 50 37
M12 92 38
M14 149 110
M16 184 136