HP ZE4900 - Manual (Page 171)

Screw Listing
Maintenance and Service Guide C–15
Phillips M2.0×5.0 Screw Locations
Table C-6
Phillips PM2.0×5.0 Screw
Color Qty. Length Thread
Head
Width
Silver 2 5.0 mm 2.0 mm 4.0 mm
Where used:
2 screws that secure the wireless antenna boards to the notebook
(documented in Section 5.12 )
mm