screw thread
noun Date: circa 1812 1. the projecting helical rib of a screw 2. one complete turn of a screw thread

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Screw thread — Screw Screw (skr[udd]), n. [OE. scrue, OF. escroue, escroe, female screw, F. [ e]crou, L. scrobis a ditch, trench, in LL., the hole made by swine in rooting; cf. D. schroef a screw, G. schraube, Icel. skr[=u]fa.] 1. A cylinder, or a cylindrical… …   The Collaborative International Dictionary of English

  • screw thread — n. the helical ridge of or for a screw …   English World dictionary

  • Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… …   Wikipedia

  • screw thread — noun the raised helical rib going around a screw • Syn: ↑thread • Hypernyms: ↑rib • Part Holonyms: ↑screw * * * noun 1. : the projecting helical rib …   Useful english dictionary

  • screw thread — 1. Also called worm. the helical ridge of a screw. 2. a full turn of the helical ridge of a screw. [1805 15] * * * …   Universalium

  • screw thread — noun The portion of a screw composed of a helical or tapered structure used to convert between rotational and linear movement or force, presented as a curved line of solid material that wraps around the screw from the point to the base …   Wiktionary

  • screw thread — /ˈskru θrɛd/ (say skrooh thred) noun 1. the helical ridge of a screw. 2. a full turn of the spiral ridge of a screw …   Australian English dictionary

  • screw thread — n. outer spiral ridge that forms a screw …   English contemporary dictionary

  • ISO metric screw thread — The ISO metric screw threads are the world wide most commonly used type of general purpose screw thread.[1] They were one of the first international standards agreed when the International Organization for Standardization was set up in… …   Wikipedia

  • left-hand screw thread — noun : a screw thread whose helix moves upward when the screw is inserted vertically from above in a fixed mating thread and turned clockwise …   Useful english dictionary

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