expansion bolt
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expansion bolt — n. a bolt with an attachment that expands as the bolt is screwed in so as to anchor it in place, used in holes drilled in stone, concrete, etc … English World dictionary
expansion bolt — noun a bolt that has an attachment that expands as the bolt is driven into a surface • Hypernyms: ↑bolt … Useful english dictionary
expansion bolt — Building Trades. a bolt inserted into a hole drilled in masonry and mechanically expanded to serve as an anchor for shelves, timbers, etc. * * * … Universalium
expansion bolt — noun a bolt that expands when inserted, no thread being required in the surrounding material … English new terms dictionary
Bolt (climbing) — In climbing, a bolt is a permanent anchor fixed into a hole drilled in the rock, usually consisting of a glued in or expansion bolt.There are two main types of bolt placements: bolt hangers and bolt runners.Bolt hangers consist of a bolt that… … Wikipedia
bolt — A high tensile steel bolt used as an anchor; either a conical bolt screwed into a metal holder in a hole drilled in rock, causing expansion for grip, or a bolt with partially filed thread hammered into a slightly smaller hole [25] … Lexicon of Cave and Karst Terminology
Anchor bolt — A cast in place anchor bolt An anchor bolt is used to attach objects or structures to concrete. There are many types of anchor bolts, consisting of designs that are mostly proprietary to the manufacturing companies. All consist of a threaded end … Wikipedia
rock bolt — Mining, Civ. Engin. a steel or fiberglass bolt inserted and anchored in a hole drilled in rock to prevent caving of the roof of a tunnel or subterranean chamber. [1955 60] * * * ▪ mining in tunneling and underground mining, steel rod… … Universalium
Piton à expansion — Pour les articles homonymes, voir Piton (homonymie). un piton à expansion dans la plaquette duquel est passé un mousqueton En escalade, un piton à expansion (aussi appelé spit … Wikipédia en Français
Socket bolt — Socket Sock et, n. [OE. soket, a dim. through OF. fr. L. soccus. See {Sock} a covering for the foot.] 1. An opening into which anything is fitted; any hollow thing or place which receives and holds something else; as, the sockets of the teeth.… … The Collaborative International Dictionary of English
expansionbolt — expansion bolt n. A bolt having an attachment that expands as the bolt is driven into a surface. * * * … Universalium
