Lenovo 1141BUU Hardware Maintenance Manual page 91

Step Screw (quantity)
2
M2.5 × 6 mm, wafer-head, nylon-coated (2)
When installing: Make sure that the connector is attached firmly to the system board.
In step 5 , release wireless antenna cables from the cable guides.
Color Torque
Black 0.392 Nm
(4 kgf-cm)
.
Chapter 8 Removing and replacing a FRU
85