Lenovo ThinkPad T490 Hardware Maintenance Manual page 81

Removal steps of the RJ45 cable, bracket and board
Step Screw (quantity)
3
M2 × 4 mm, wafer-head, nylon-coated (3)
Color Torque
Black 0.181 Nm
(1.85 kgf-cm)
.
Chapter 8 Removing or replacing a FRU
75