
AIR20-A
工业机器人操作机手册
Appendix B Table of screw strength and tightening torque (Nm)
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Appendix B Table of screw strength and tightening torque (Nm)
Appendix B Table of screw strength and tightening torque
(
Nm
)
Performance level
Thread
specification
8.8 level
10.9 level
12.9 level
M2
0.35
0.48
0.56
M2.5
0.68
0.93
1.1
M3
1.2
1.6
2
M4
2.8
3.7
4.4
M5
5.6
7.5
9
M6
9.5
12.5
15
M8
23
31
36
M10
45
60
70
M12
78
104
125
M14
113
165
195
M16
195
250
305
M20
370
500
600
Prompt
All screws must be tightened with proper torque.
Except for the torque specified in the text, the corresponding tightening
torque shall be selected according to the screw performance level.
Remove foreign matters in screws and threaded holes.
Torque for lightly lubricated screws.
Screws shall be tightened evenly and symmetrically.
According to the installation requirements of the reducer and other
moving parts, apply thread adhesive to the engagement part of some
screws.