Phillips PM3.0×4.0 captive screw
Color Quantity Length Thread Head diameter
Silver 5 (discrete) or 3 (UMA) 4.0 mm 3.0 mm 5.0 mm
Where used: 5 captive screws (secured by C-clips) that secure the discrete heat sink to the system
board
Where used: 3 captive screws (secured by C-clips) that secure the UMA heat sink to the system board
112 Chapter 7 Screw listing