THE BEST SIDE OF TYPES OF SCREW HEADS

Breakaway head The breakaway head (also known as breakoff or shear fastener)[70] can be a large-security fastener whose head breaks off for the duration of set up, throughout or immediately after the driving system, to depart just a sleek floor. It ordinarily is made up of a countersunk flat-head bolt, with a thin shank and hex head protruding with