A Simple Key For types of screw heads for screwdrivers Unveiled
To eliminate or set up these types of screws, you need a socket or maybe a wrench. Because the full head is turned through the motion, as opposed to just the internal part of the head, you can get good leverage on this type of screw head.ASME B18.two.nine "Straightness Gage and Gaging for Bolts and Screws" was created to deal with this problem. For