Compaq P 110 - Manual (Page 141)

C–10 Maintenance and Service Guide
Table C-4
M2.5 × 5.5 Screw
Color Qty Length Thread
Head
Width
Black 6 5.5 mm M2.5 4.5 mm
Where used:
1 3 screws securing the hard drive and hard drive bracket to the base
enclosure (documented in Section 5.14)
2 1 screw securing the optical drive alignment rail to the base enclosure
(documented in Section 5.17)
3 2 screws securing the system board to the base enclosure (documented in
Section 5.17)