TYPES OF SCREW HEADS - AN OVERVIEW

A torx generate screw head is often a type of head made use of on screws and fixings for anti-tamper apps. They characteristic a star-like condition which demands a specialist Resource to tighten/loosen. A triple-square screw is also called XZN. This screw is built by overlaying 3 symmetrical squares to form twelve uniformly spaced details which h