Installation and Commissioning
52
Carefully read these Operating Instructions before starting any work!
This is especially valid for the chapter on General Safety Instructions
and the safety instructions in each of the chapters.
6.9 Torques for screw and bolt connections to Works Standard M 3059
Screws and bolts / nuts with external‐ or internal hex, head without collar or flange
Thread size
x pitch
Strength classes / tightening torques in Nm
for 8.8 / 8 for 10.9 / 10 for 12.9 / 12
M4 2.5 4.0 4.5
M5 5.0 7.5 9.0
M6 9.0 13.0 15.0
M7 14.0 20.0 25.0
M8 22.0 30.0 35.0
M8x1 23.0 35.0 40.0
M10 45.0 65.0 75.0
M10x1.25 45.0 65.0 75.0
M10x1 50.0 70.0 85.0
M12 75.0 105.0 125.0
M12x1.5 75.0 110.0 130.0
M12x1.25 80.0 115.0 135.0
M14 115.0 170.0 200.0
M14x1.5 125.0 185.0 215.0
M16 180.0 260.0 310.0
M16x1.5 190.0 280.0 330.0
M18 260.0 370.0 430.0
M18x2 270.0 290.0 450.0
M18x1.5 290.0 410.0 480.0
M20 360.0 520.0 600.0
M20x2 380.0 540.0 630.0
M20x1.5 400.0 570.0 670.0
M22 490.0 700.0 820.0
M22x2 510.0 730.0 860.0
M22x1.5 540.0 770.0 900.0
M24 620.0 890.0 1040.0
M24x2 680.0 960.0 1130.0
M24x1.5 740.0 1030.0 1220.0
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