Lenovo ThinkPad S5 2nd Generation Hardware Maintenance Manual page 89

Step Screw (quantity)
3
M2 × 3 mm, flat-head, nylon-coated (1)
Removal steps of the dc-in LED card
Color Torque
Black 0.196 Nm
(2 kgf-cm)
.
Chapter 9 Removing or replacing a FRU
83