Table 2-2. Required Equipment • Small Phillips screwdriver, preferably magnetized. • Small flat-blade screwdriver. • 5 mm nut driver Table 2-3. Recommended Screw Torque Values 2-2 Removal and Replacement HP Omnibook XE4100/XE4500 Screw Thread Size Torque (cm-kgf) Torque (in-lbf) M2 2,0 – 2,5 1.7 – 2.2 M2.5 (hinges) 3,5 – 4,0 3.0 – 3.4 M2.5 (other) 2,5 – 3,0 2.2 – 2.6 M3 2,5 – 3,0 2.2 – 2.6 Standoff, hex 2,5 – 3,0 2.2 – 2.6