A Secret Weapon For types of screw heads
this is the variation of the counter sunk screw head, although the below floor of The top is curved, just like a bugle. This decreases damage to plasterboard lowering tearing on the paper, so is often identified on drywall screws flat head screwhex head screwlag screwsPhillips screw headRobertson screw headself-tapping screwsTorx screw head these