machine bolt
noun
a threaded fastener, used with a nut for connecting metal parts, having a thread diameter of about 1/4 inch (6.4 mm) or more and a square or hexagonal head for tightening by a wrench.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
machine bolt
noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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