IBM ThinkPad A20m Hardware Maintenance Manual page 83

Step Screw (quantity)
2
M2.5 × 15 mm, nylon-coated (2)
Cable routing: When replacing the cable, see the
preceding figure for its cable routing.
ThinkPad A20m/p, A21m/p and A22m/p
Removing and replacing a FRU
Torque
0.392 Nm
(4 kgfcm)
77