
O
PERATING
M
ANUAL
9.
A
NNEX
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
41
Version 02/2009
DAF330