Phillips Screws

Phillips screws are cross-head fasteners designed to allow controlled slipping (cam-out) under high torque.

Common driver sizes:

• PH0: Very small electronics
• PH1: Small screws and sensors
• PH2: Most common hardware
• PH3: Large fasteners

Correct Driver Fit

A proper driver:

• Fully fills the screw head
• Has minimal wobble
• Engages all four contact points

Signs of Incorrect Fit

• Stripping or rounding of the head
• Slipping during tightening
• Excessive force required

Using the correct driver size is one of the simplest ways to prevent hardware failure.