All above photographs are courtesy of Wikipedia, to determine more details on each type of travel head, see the whole list of screw travel head types below. Socket cap screws Use a cylindrical head with a hexagonal drive gap. They're designed for apps the place the screw head simply cannot https://types-of-roof-damage72603.fare-blog.com/29475836/the-2-minute-rule-for-lead-screw-lead-size