LITTLE KNOWN FACTS ABOUT TYPES OF SCREW HEADS.

The polydrive screw travel, often known as RIBE,[seventy four] is spline-shaped with rounded ends within the fastener head. The Software has 6 flat teeth at equivalent spacing; the measurements are based on the diameter with the star factors. However, be cautious with far too much drive because it’s your ally, but only till it gets extreme plent