HP Compaq nx6110 Maintenance And Service Manual page 186

Screw Listing
mm
Where used:
4 screws that secure the LED board to the switch cover
(documented in
Phillips M1.5×4.0 Screw Locations
C–12
Phillips PM1.5×4.0 Screw
Color
Silver
Section 5.11)
Table C-6
Qty. Length
4 4.0 mm
Maintenance and Service Guide
Head
Thread Width
1.5 mm 4.0 mm