Lenovo 21FA Hardware Maintenance Manual page 89

Removal steps of the power button with fingerprint reader and bracket
Step Screw (quantity)
2
M2 × 3.5 mm, flat-head, nylon-coated (2)
Color Torque
Silver 0.181 Nm
(1.85 kgf-cm)
.
Chapter 9 Removing or replacing a FRU
83