screw heads

screw heads
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English-Bulgarian polytechnical dictionary . 2013.

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  • screw-wrench — screwˈ wrench noun A tool for gripping screw heads • • • Main Entry: ↑screw …   Useful english dictionary

  • Screw-pile lighthouse — Screw pile lighthouses stand on piles that are screwed into sandy or muddy sea or river bottoms. The first screw pile lighthouse was built by blind Irish engineer Alexander Mitchell. It was constructed in 1838 at the mouth of the Thames and was… …   Wikipedia

  • Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …   Wikipedia

  • screw — screwable, adj. screwer, n. screwless, adj. screwlike, adj. /skrooh/, n. 1. a metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, esp. by means of a screwdriver. 2 …   Universalium

  • 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 — I. vb 1. to have sex (with). This use of the word was recorded in Grose s Dictionary of the Vulgar Tongue in 1785. It may be a direct metaphor or may be influenced by the archaic use of screw to mean a key (turn ing in a lock). Since the late… …   Contemporary slang

  • Screw pile — Pile Pile, n. [AS. p[=i]l arrow, stake, L. pilum javelin; but cf. also L. pila pillar.] 1. A large stake, or piece of timber, pointed and driven into the earth, as at the bottom of a river, or in a harbor where the ground is soft, for the support …   The Collaborative International Dictionary of English

  • Differential screw — A differential screw is a mechanism used for making small, precise adjustments to the spacing between two objects (such as in focusing a microscope [1]). It uses a nut with two screws, one entering each end. The heads of the screws are fixed to… …   Wikipedia

  • List of screw drives — Contents 1 Common types 1.1 External types 1.1.1 Square 1.1.2 Hex …   Wikipedia

  • Archimedes' screw — was operated by hand and could raise water efficiently …   Wikipedia

  • The Amazing Screw-On Head — Superherobox| caption = From the cover to the one shot comic by Mike Mignola. comic color = background:#80ffff character name = Screw On Head real name = Unknown; it seems likely Screw On Head is his real name publisher = Dark Horse Comics debut …   Wikipedia

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