THE 2-MINUTE RULE FOR DIFFERENT TYPES OF SCREW HEADS

Sq. Head- Sq. heads function a square in the middle of the head and therefore are prevalent for screws and bolts.The generate type on a screw ordinarily contains ridges in the screws head. When you insert the right screwdriver or drill little bit in the head in the screw, it is going to dig into these ridges that can assist you turn the fastener.F