Step

Screw (quantity)

Color

Torque

 

 

 

 

 

 

 

 

 

M2 × 3 mm, wafer-head, nylon-coated (1)

Black

0.181 Nm

 

3

 

 

 

 

 

 

(1.85 kgfcm)

 

 

 

 

 

 

 

 

 

Shoulder screw (2)

Silver

0.181 Nm

 

4

 

 

 

 

 

 

(1.85 kgfcm)

 

 

 

 

 

 

84ThinkPad T420 and T420i Hardware Maintenance Manual

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Image 90
Lenovo T420i manual Step Screw quantity Color Torque