8 Reference information, IRB 1400
8.0.4 Screw joints
152 3HAC021111-001 Revision: B
The table below specify the recommended standard tightening torque for Molycote-lubri-
cated screws with Allen head screws.
The table below specify the recommended standard tightening torque for water and air con-
nectors when one or both connectors are made of brass.
Dimension
Tightening torque (Nm)
Class 10.9, Molycote-lubricated
Tightening torque (Nm)
Class 12.9, Molycote-lubricated
M8 28 34
M10 55 66
M12 96 115
M16 235 280
Dimension
Tightening torque
Nm - Nominal
Tightening torque
Nm - Min.
Tightening torque
Nm - Max.
1/8 12 8 15
1/4 15 10 20
3/8 20 15 25
1/2 40 30 50
3/4 70 55 90