Compaq N1020V - Manual (Page 209)

Maintenance and Service Guide C–13
Figure C-12. PM2.5 × 4.0 Screw Locations
Table C-4
Phillips Metric 2.5 × 4.0 Screw
Color Qty Length Thread
Head
Width
Silver 2 4.0 mm 2.5 mm 5.0 mm
Where used:
1 One screw that secures the memory expansion compartment cover to the
base enclosure (documented in Section 5.5)
2 One screw that secures the mini PCI compartment cover to the base
enclosure (documented in Section 5.6)