Lenovo ThinkPad T420si Hardware Maintenance Manual page 101

Step Screw (quantity)
1
M 2 × 9 mm, flat head, nylon-coated (1)
2
M2 × 3 mm, flat head, nylon-coated (1)
Step Screw (quantity)
4
M2 × 5 mm, big-head, nylon-coated (4)
Color Torque
Black 0.181 Nm
(1.85 kgfcm)
Silver 0.181 Nm
(1.85 kgfcm)
Torque
Color
Black 0.181 Nm
(1.85 kgfcm)
.
Chapter 8 Removing and replacing a FRU
95