HP Compaq Presario,Presario V1000 Maintenance And Service Manual page 211

Screw Listing
mm
Where used:
One screw that secures the fan assembly to the notebook
(documented in
Torx T8M2.5×6.0 Fan Assembly Screw Location
C–18
Phillips PM2.5×6.0 Screw
Color
Black
Section 5.13)
Table C-11
Qty. Length
1 6.0 mm
Maintenance and Service Guide
Head
Thread Width
2.5 mm 5.0 mm