Lenovo Thinkpad L570 Hardware Maintenance Manual page 92

When installing: Ensure that the connectors are attached firmly to the system board.
Step Screw (quantity)
13
M2 × 5 mm, flat-head, nylon-coated (6)
86
L570 Hardware Maintenance Manual
Color Torque
Black 0.181 Nm
(1.85 kgf-cm)