IBM X24 manual ThinkPad X20, X21, X22, X23

Step	Screw (quantity)	Torque
	M2.6 ⋅ 4mm (4) BK	29.4 Ncm (3 kgfcm)
	M2 ⋅ 8mm,	29.4 Ncm (3 kgfcm)
	Nylock-coated(2) BK

78ThinkPad X20, X21, X22, X23, X24