The best Side of lead screw thread
Undercut: The taper descends at a regular angle from a standard-sizing head, but meets a flat base that sits on top of the screw entire body. A Robertson screw, often known as a square[38] or Scrulox screw travel, is specified as ANSI Type III Square Middle and it has a square-shaped socket from the screw head and a square protrusion on the Instru