6 Reference information
6.4. Screw joints
255
3HAC027309-001 Revision: D
©
Co
py
rig
h
t 200
6-
201
0 ABB. All righ
ts reser
v
ed.
The table below specifies the recommended standard tightening torque for
Molycote-
lubricated screws
with
Allen head screws.
The table below specifies the recommended standard tightening torque for
water and air
connectors
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
35
M10
55
70
M12
96
120
M16
235
280
M20
550
M24
790
950
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
Continued
Summary of Contents for SpotPack IRB 6620
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