machine bolt

from WordNet (r) 3.0 (2006)

machine bolt
    n 1: a bolt with a square or hexagonal head on one end and a
         threaded shaft on the other end; tightened with a wrench;
         used to connect metal parts

from The Collaborative International Dictionary of English v.0.48

machine bolt \machine bolt\ n.
   A threaded hexagonal or square-headed bolt with a nut; it is
   tightened with a wrench and used to connect metal parts.
   [WordNet 1.5]

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