B Common Screw Torques - Huawei FusionModule2000 Installation Manual

FusionModule2000 Smart Modular Data Center
Installation Guide (2000 mm High Cabinets, Single-Row
Aisle Containment, 380 V)
Application Scenario
Board, module, or panel
installation
Guide rail installation
Subrack or box-type
module installation
Grounding
Cabinet or chassis
installation, cable tray,
upper fastener, or
antiseismic enhancement
installation, cabinet
combination, or outdoor
cable clip
Issue 04 (2017-06-30)
B
Common Screw Torques
Screw Specifications
M2.5 captive screw
M3 captive screw
Captive
Cross recessed pan head
thread forming screw
M5 (GB/T 6560-1986)
M3 screw assembly
(mounting ear)
M4 countersunk screw
(mounting ear)
M6 panel screw
M4
M6
M8
ST3.5 tapping screw +
plastic expansion sleeve
M4
Cross recessed pan head
thread forming screw M5
(GB/T 6560-1986)
M6
M8/M8 expansion bolt
(tension/implosion)
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Copyright © Huawei Technologies Co., Ltd.

B Common Screw Torques

Torque (Kgf· cm) (Tolerance:
± 10%)
2.1–2.5
3.8–4.2
M2.5 3
M3 6
30
6
12
20
14
48
120
3
12
30
30
130
248