Cotter pin: Difference between revisions
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Latest revision as of 20:42, 15 November 2017
A split pin, also known in the U.S. usage as a cotter pin or cotter key,[1] is a metal fastener with two tines that are bent during installation, similar to a staple or rivet. Typically made of thick wire with a half-circular cross section, split pins come in multiple sizes and types.