Lenovo ThinkPad T420 4177 Hardware Maintenance Manual page 109

Table 28. Removal steps of LCD panel (continued)
Step Screw (quantity)
1
M2 × 3 mm, small-head, nylon-coated (4)
When installing:
When attaching the LCD panel to the cover, gently press the left and right edges covered with metal. Do not press
the surface of the panel or apply any excessive force to the panel.
Color Torque
0.181 Nm
Silver
(1.85 kgfcm)
.
Chapter 8 Removing and replacing a FRU
101