Lenovo ThinkPad T43 2668 Hardware Maintenance Manual page 184

Removing and replacing a FRU
(Bottom view)
Step Screw (quantity)
3
M2.5 × 4.8 mm (6)
(continued)
178
MT 2668/2669/2678/2679/2686/2687
3
3
Torque
0.392 Nm
(4 kgfcm)