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Tightening Torque
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Mechanical function
Electrical function
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2 - 1 0
This standard specifies the conditions to be met when applying live
parts together with screws or nuts.
Screws and Nuts
Diameter
M2
M2.5
M3
M4
M5
M6
M8
M10
M12
Notes:
1.
Intermediate fit (H6/G6 ISO metric screw-thread).
This standard specifies the conditions to be met when applying HF
live parts or ESD contacts of a PCB of screw joints with an electrical
function.
Stainless-steel cheese screw joints on
PCBs
M2.5
M3
M3
Lucent Technologies
Overall Installation and Test Planning
1)
Pitch
0.4
0.45
0.5
0.7
0.8
1
1.25
1.5
1.75
Torque
Nominal (Nm)
0.24±0.02
0.48±0.03
0.9±0.1
2±0.1
4±0.2
7±0.3
18±0.8
34±1.5
58±2.5
Torque (Nm)
1
1.5
1.3
365-374-059
Issue a, January 2002
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