Lenovo 21D8 Hardware Maintenance Manual page 82

Removal steps of the system board
Step Screw (quantity)
1
M2.5 × 5 mm, big-head, nylon-coated (2)
76
ThinkPad P15v Gen 3 and ThinkPad T15p Gen 3 Hardware Maintenance Manual
Color Torque
Black 0.29 +/- 0.03 Nm
(3.0 +/- 0.3 kgf-cm)