machine bolt
- 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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Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
machine bolt
- a fastening bolt with a machine-cut thread
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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