HP ProBook 4310s Notebook PC and HP ProBook 4311s Notebook PC - Maintenance and Service Guide

Screw listing
Maintenance and Service Guide 7–13
Phillips PM2.0×2.0 broadhead screw
Where used: One screw that secures the switch cover to the computer in the battery bay
Color Quantity Length Thread Head diameter
Black 1 2.0 mm 2.0 mm 6.0 mm