THE GREATEST GUIDE TO HEAD SCREW TYPES

To eliminate or set up these types of screws, You'll need a socket or simply a wrench. Because the total head is turned through the motion, in lieu of just the internal part of the head, you can find excellent leverage on this type of screw head.ASME B18.2.9 "Straightness Gage and Gaging for Bolts and Screws" was designed to address this issue. For