RUMORED BUZZ ON TYPES OF SCREW HEADS

Quadrex- Quadrex screw drives are a far more special generate in comparison to some of the selections obtainable. This drive type is a mix of Phillips drives and sq. recess drives. they are often installed and eradicated with a standard Robertson, Phillips tool, or even a quadrex Resource. Pancake: Pancake head screws are distinguished by thei