Nail

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Revision as of 11:58, 16 July 2007 by Ok (talk | contribs) (Based on Glossary of Bridge Terminology; Chapter LXXX of J.A.L. Waddell's Bridge Engineering (New York: Wiley, 1916))
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A slender piece of metal either pointed or tapering, used for driving through wood or other material. Nails run in size from 2d (two penny), one inch long, to 20d (twenty penny), four inches long in carpenter usage. Bridgemen use nails up to 60d (sixty penny), or six inches long, after that they are classed as spikes.