HP 4310s - ProBook - Core 2 Duo 2.1 GHz - Phillips PM2.5×4.0 Screw

7–4 Maintenance and Service Guide
Screw listing
Phillips PM2.5×4.0 screw
Where used:
1 Two screws that secure the WLAN module to the computer
2 Two screws that secure the WWAN module to the computer
Where used: 4 screws that secure the display panel to the display enclosure
Color Quantity Length Thread Head diameter
Black 8 4.0 mm 2.5 mm 5.0 mm