Confidential
5G NR HRU Installation Manual v1.0
114
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Appendix C
Standard Torque
When fastening the bolt, use the standard torque values provided in tables below
for tightening nuts and bolts to prevent damage to the equipment. If the torque
value for each connection part is predefined, use the defined value.
Table 33.
Standard Torque Value for Fastening Bolts
Bolt Spec.
Torque
Value (N·m)
Torque
Value (lbf·in)
Torque
Value (kgf·cm)
M3
0.63
5.6
6.4
M4
1.5
13
15
M5
2.8
25
29
M6
4.9
43
50
M8
12
110
127
M10
25
217
250
M12
42
372
428
Table 34.
Brass Bolts Torque Value
Bolt Spec.
Torque
Value (N·m)
Torque
Value (lbf·in)
Torque
Value (kgf·cm)
M6
2.9
26
30
M8
6.3
56
64
Table 35.
Connector Connection Torque Value
Connector
Torque
Value (N·m)
Torque
Value (lbf·in)
Torque
Value (kgf·cm)
SMA connector
0.59
5.2
6
TNC connector
0.88
7.8
9
N-type connector
2
17
20
DIN-type connector
25
217
250
4.3-10-type connector
5
44
51
The torque values can be different, defending on the material, characteristic, and
specification of the equipment and fastener. Ensure that you check the proper
torque value for each specification of the equipment and the fastener.