screw thread

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See also: screwthread



screw thread (plural screw threads)

  1. (engineering) A helical ridge which wraps around an elongated cylinder, or a groove spiraling around the wall of a bore, used mostly on fasteners and their connection points.
    • An internal screw thread is cut with a "tap", while external screw threads are cut with a "die".


See also[edit]

die, tap