Lenovo 20U1 Hardware Maintenance Manual page 104

Removal steps of the system board (for models without hard disk drive)
Step Screw (quantity)
14
M2.5 × 4.5 mm, flat-head, nylon-coated (2)
98
L14 Gen 1 and L15 Gen 1 Hardware Maintenance Manual
Torque
Color
Silver 0.294 Nm
(3.0 kgf-cm)