THE DEFINITIVE GUIDE TO TYPES OF SCREW HEADS

The ‘pan’ head may be the mostly employed rounded-best screw head. It works perfectly in A variety of purposes that demand a flat-bottomed screw. also referred to as pig nose or twin gap, this screw head has two spherical holes which can be reverse one another and resemble a pig’s nose. This is a stability-type screw to circumvent tampering.