ThinkPad T420 Hardware Maintenance Manual page 96

When installing: Make sure that the connectors are attached firmly.
Step Screw (quantity)
13
M2 × 3 mm, wafer-head, nylon-coated (1)
90
ThinkPad T420 and T420i Hardware Maintenance Manual
Downloaded from LpManual.com Manuals
1 7
1 7
1 9
1 8
Color Torque
Black 0.181 Nm
(1.85 kgf-cm)