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tap bolt[′tap ‚bōlt]
A bolt with a head that can be screwed into a hole and held in place without a nut. Also known as tap screw.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A machine bolt, threaded relatively close to the head, which is screwed into a hole in a material without the use of a nut.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.