Lenovo ideapad S530-13IWL Hardware Maintenance Manual page 45

Step Screw (quantity)
13
M 2 × 3 mm (2)
14
M 2.5 × 4.5 mm (3)
Torque
0.181 Nm
(1.85 kgf-cm)
0.181 Nm
(1.85 kgf-cm)
.
Chapter 4 Removing a FRU or CRU
41