OPERATING MANUAL 9. ANNEX
ThyssenKrupp Aufzugswerke GmbH
9.1 Tightening torque – mechanical strength
Attention: when performing work on the machine or replacing parts see to it
that the required tightening strength of the screws and the tightening torque
are observed.
Secure the screws against unintentional unscrewing with Loctite 241 when
performing installation work.
The values below apply for:
Hexagon socket screw DIN 912 ISO 4762
Hexagon screw DIN 931 / 933 ISO 4014 / 4017
Tighten screws by means of torque spanner!
Dimension Tightening torque M
A
(Nm)
Strength 8.8 10.9 12.9
M4 2,6
M5 5,3
M6 9,0 12 15
M8 23 30 35
M10 45 60 75
M12 75 110 130
M16 190 270 320
M20 370 520 620
M24 640 900 1100
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