IBM THINKPAD S05L-1270-01 - Manual (Page 92)

All Models
Step Size (Quantity) Torque
8 M 2.5 x 6mm (3) 4 kgcm
Note: Make sure you use the correct screw and tighten the
screw to the torque specified. Do not use the screw that you
removed, use a new screw.
80 IBM Mobile Systems HMM