Lenovo THINKPAD T41/T41P Hardware Maintenance Manual page 190

Removing and replacing a FRU
(Bottom view)
Step Screw (quantity)
3
M2.5 × 4.8 mm (6)
(continued)
184
T40/T40p, T41/T41p, T42/T42p
3
3
Torque
0.392 Nm
(4 kgfcm)