Lenovo ThinkPad X1 Series Hardware Maintenance Manual page 99

Removal steps of the LCD unit (for X1 Yoga)
Step Screw (quantity)
4
M2.5 × L4 mm, flat-head, nylon-coated (6)
Color Torque
Black 0.294 Nm
(3.0 kgf-cm)
.
Chapter 9 Removing or replacing a FRU
91