a movable bar or rod that when slid into a socket fastens a door, gate, etc. the part of a lock that is shot from and drawn back into the case, as by the action of the key. any of several types of strong fastening rods, pins, or screws, usually threaded to receive a nut. a sudden dash, run, flight, or escape. The Governor won't be here for half an hour; bolt the door and have it out. One had already been slain by a bolt , so that there were but four upon their feet. I pray you to speed a bolt against yonder shield with all your force. Stand aside, Arnaud, lest you find a bolt through your gizzard. Definition of bolt for Students. 1 : a stroke of lightning : thunderbolt . 2 : a sliding bar used to fasten a door. 3 : the part of a lock worked by a key. 4 : a metal pin or rod with a head at one end and a screw thread at the other that is used to hold something in place.

Bolt heads. These are designed to engage with the tool used to tighten them. Some bolt heads instead lock the bolt in place, so that it does not move and a tool is only needed for the nut end. Common bolt heads include hex, slotted hex washer, and socket cap. The first bolts had square heads, formed by … Sep 15, 2015 Whether it’s a screw, bolt or stud, they are typically all made of a few different metals. This includes carbon steel, stainless steel, brass, nickel alloy and aluminum alloy. Manufacturers must use the highly quality metals to reduce the risk of cracking, rusting and other damage,. Bolt -hole definition , a hole in the ground, protected opening in bushes, etc., into which an animal can flee when pursued or frightened. See more. Bolt -hole Define Bolt -hole at Dictionary .com

87 synonyms of bolt from the Merriam-Webster Thesaurus, plus 74 related words, definitions, and antonyms. Find another word for bolt . to move suddenly and … Ring bolts . A ring bolt is an eye bolt with a captive ring passing through it. The loose ring is articulated, such that it can rotate in at least one axis, and can thus reduce bending forces on the bolt when loaded and will present the minimum obstruction when flat. Nov 26, 2018 Etymology. From bolt , for a maker of bolts , or a nickname for a short and heavy person.

No longer, 5 July 2018 The loose and lost nuts and bolts alone were enough to bump the mission into 2021, officials noted. — Marcia Dunn, here, More delay, cost for NASA's James Webb Space Telescope, 28 June 2018 In May 2017, an inspector found damaged nuts and bolts .