Lenovo ThinkPad X220 Tablet Hardware Maintenance Manual page 71

Step Screw (quantity)
1
Hard disk drive screw, M3 × 3 mm, wafer-head, nylon-coated (1)
Color Torque
Black 0.181 Nm
(1.85 kgfcm)
.
Chapter 8 Removing and replacing a FRU
65