THE DEFINITIVE GUIDE TO TYPES OF SCREW HEADS FOR SCREWDRIVERS

An external hex screw head is often known as a hex head cap screw. The screw head is built up of a six-sided fastener. Usually there are some mixture-form screw heads using a slotted screw head from the Center of your hex head cap.A pin screw head is leading of the road In regards to protection. This screw head provides a pin in the center with the