FACTS ABOUT TYPES OF SCREW HEADS CHART REVEALED

Square Head- Square heads aspect a sq. in the middle of your head and they are popular for screws and bolts.Square head bolts are comparable to hexagonal-shaped cap screws, except they have got a 4-sided sq. head in place of a six-sided hex head. This sq. head permits a safer wrench grip for the duration of fastening.But which types of screwdriver