pin (fastener)

In mechanical and civil engineering, a peg or bar designed to fasten machine and structural components together or to keep them aligned.

Dowel pins are used to keep machine components aligned, sometimes without making a rigid joint (as in a pin-connected truss). Taper pins are used to fix the hub of a gear or a pulley to a shaft. Split cotter pins prevent nuts from turning on bolts and keep loosely fitting pins in place. The clevis pin has a ridge at one end and is kept in place by a cotter pin inserted through a hole in the other end. Many other types of pins are used in various machines.

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Universalium. 2010.

Look at other dictionaries:

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  • pin — /pin/, n., v., pinned, pinning. n. 1. a small, slender, often pointed piece of wood, metal, etc., used to fasten, support, or attach things. 2. a short, slender piece of wire with a point at one end and a head at the other, for fastening things… …   Universalium

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  • Fastener — A fastener is a hardware device that mechanically joins or affixes two or more objects together.Fasteners can also be used to close a container such as a bag, a box, or an envelope; or they may involve keeping together the sides of an opening of… …   Wikipedia

  • fastener — noun 1. a person who fastens or makes fast he found the door fastened and wondered who the fastener was • Derivationally related forms: ↑fasten • Hypernyms: ↑person, ↑individual, ↑someone, ↑somebody, ↑mor …   Useful english dictionary

  • pin — I (New American Roget s College Thesaurus) n. peg, spoke, dowel; fastener, bolt, toggle; needle, bodkin, skewer, style; brooch, scarf pin, fraternity pin, tie pin; badge. See ornament, sharpness, marriage. v. t. fasten, hold, bind, rivet, attach …   English dictionary for students

  • pin — I n. metal fastener 1) a safety; straight pin 2) a bobby pin (AE; BE has hairgrip) 3) a drawing pin (BE; AE has thumbtack) 4) a pin pricks 5) (misc.) the head of a pin tube shaped piece of wood 6) a rolling pin target in bowling 7) to spot (… …   Combinatory dictionary

  • fastener — Synonyms and related words: adhesive, affixation, anchor, annexation, attachment, band, bandage, bar, barrette, bellyband, belt, bind, binding, binding stone, binding twine, bobby pin, bollard, bolt, bond, bonder, bondstone, box hook, brace,… …   Moby Thesaurus

  • pin — [[t]pɪn[/t]] n. v. pinned, pin•ning 1) a small, slender, often pointed piece of metal, wood, etc., used as a fastener or support 2) a short, slender piece of wire with a point at one end and a head at the other, for fastening things together 3)… …   From formal English to slang

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