HP Compaq nc6220 - Notebook PC Maintenance And Service Manual page 202

Screw Listing
mm
Where used:
2 screws that secure the top cover to the computer (documented in
Section 6.21)
Phillips PM2.0×4.0 Screw Locations
C–18
Table C-11
Phillips PM2.0×4.0 Screw
Color Qty.
Black 2
Length Thread
4.0 mm 2.0 mm
Maintenance and Service Guide
Head
Width
4.0 mm