TYPES OF SCREW HEADS - AN OVERVIEW

The polydrive screw travel, generally known as RIBE,[74] is spline-shaped with rounded ends in the fastener head. The Resource has 6 flat enamel at equal spacing; the dimensions are based on the diameter with the star points. The ASTER recess was created by LISI Aerospace[forty three] to offer a far more dependable solution than the hexagonal rece