The 5-Second Trick For types of screw heads
B Point: B tips are located in equipment thread screws and they are for steel, plastic and plywood, exactly where a pilot hole has actually been drilled. They are often only for shallow holes flat head screwhex head screwlag screwsPhillips screw headRobertson screw headself-tapping screwsTorx screw head Flange screws are generally known as frame