Lenovo ThinkPad T430 Hardware Maintenance Manual page 122

Step Screw (quantity)
1
M2.5 × 4 mm, wafer-head, nylon-coated (4)
When installing: Attach the hinges as shown in the following illustration.
116
ThinkPad T430 and T430i Hardware Maintenance Manual
Color Torque
Black 0.392 Nm
(4.0 kgf-cm)