THE DEFINITIVE GUIDE TO TYPES OF SCREW HEADS

The polydrive screw drive, also called RIBE,[74] is spline-formed with rounded ends inside the fastener head. The tool has 6 flat enamel at equivalent spacing; the dimensions are based on the diameter of the star details. Countersink is required for these screws for accommodating the angle. when compared with flat screw their head website a little