HP Compaq 6530b

Phillips PM2.5×7.0 captive screw
Color Quantity Length Thread Head diameter
Silver 2 7.0 mm 2.5 mm 5.0 mm
Where used: 2 captive screws that secure the fan to the system board (screws are secured by C-clips)
Phillips PM2.5×7.0 captive screw 131