HP Compaq Presario,Presario 1500 Maintenance And Service Manual page 198

Where used:
Two screws that secure the optical drive to the computer
(documented in Section 5.3)
Figure C-1. TM2.5 × 5.0 Screw Locations
C–2
Table C-1
Torx T8 Metric 2.5 × 5.0 Screw
Color
Silver
Qty Length
30 5.0 mm
Maintenance and Service Guide
Head
Thread Width
2.5 mm 5.0 mm