TYPES OF SCREW HEADS OPTIONS

The spherical washer head screw is Just about the most adaptable screws available. The screw features a washer crafted suitable in. This washer enhances the bearing region, increasing the strength of the link. You may use a Robertson’s bit to push it or utilize a Specific one for the double-square for bigger torque application. The top of your

The polydrive screw generate, also called RIBE,[seventy four] is spline-formed with rounded ends in the fastener head. The tool has 6 flat teeth at equivalent spacing; the measurements are based on the diameter of more info your star points. the very first kind of countersunk screw head, the flat head, sits totally in the identical airplane of the