Screw thread

noun

Definitions

Noun
  1. 1
    A helical ridge formed around a cylinder, or a helical groove formed around the inner 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"."

  2. 2
    the raised helical rib going around a screw wordnet

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