square-head screw

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• socket head screw — noun : a screw having a recess or socket to fit a wrench for turning rather than a slot or external hexagonal or square shape * * * socket head screw noun A screw with a hexagonal recess in its head, turned by means of a hexagonal bar formed into …   Useful english dictionary

• 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

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

• Combination square — with standard head A Combination Square consisting of the rul …   Wikipedia

• Set screw — A set screw, is a type of screw generally used to secure an object within another object. It is generally fully threaded. A blind screw (or grub screw) will generally not have an external head and will be inserted into its location by means of an …   Wikipedia

• Lag screw — Lag Lag, n. 1. One who lags; that which comes in last. [Obs.] The lag of all the flock. Pope. [1913 Webster] 2. The fag end; the rump; hence, the lowest class. [1913 Webster] The common lag of people. Shak. [1913 Webster] 3. The amount of… …   The Collaborative International Dictionary of English

• coach screw — /ˈkoʊtʃ skru/ (say kohch skrooh) noun a large screw with a square head used in timber work in buildings, etc …  

• bung head — noun Etymology: perhaps from bung (I) : a tapered square head on a bolt or screw …   Useful english dictionary

• lag screw — noun a heavy woodscrew with a square or hexagonal head that is driven in with a wrench • Syn: ↑lag bolt • Hypernyms: ↑woodscrew * * * noun Etymology: lag (VI); from its original use in securing lags to drums or cylinders : a …   Useful english dictionary