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Bolt (fastener) A bolt is an externally helical threaded fastener that fastens objects with unthreaded holes together. This is done by applying a twisting force ( torque) to a matching nut. The bolt has an external male thread requiring a matching nut with a pre-formed female thread. [1] Unlike a screw, which holds objects together by the ...
A bolt is a form of threaded fastener with an external male thread requiring a matching pre-formed female thread such as a nut. Bolts are very closely related to screws. A bolt is a type of mechanical fastener that consists of a shaft with threads and is used to hold two or more parts together. The shaft of the bolt is inserted through aligned ...
BOLT meaning: 1. a metal bar on a door or window that slides across to lock it closed: 2. a screw-like metal…. Learn more.
The meaning of BOLT is a lightning stroke; also : thunderbolt. How to use bolt in a sentence.
Word Origin noun senses 1 to 4 Old English, ‘arrow’, of unknown origin; related to Dutch bout and German Bolzen ‘arrow, bolt for a door’. noun sense 5 Middle English: transferred use of bolt ‘metal pin’.
bolt in American English. (boult) noun. 1. a movable bar or rod that when slid into a socket fastens a door, gate, etc. 2. the part of a lock that is shot from and drawn back into the case, as by the action of the key. 3. any of several types of strong fastening rods, pins, or screws, usually threaded to receive a nut.
Bolt definition: A bar made of wood or metal that slides into a socket and is used to fasten doors and gates.
