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expansion bolt |
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expansion bolt [ik′span·shən ‚bōlt] (design engineering) A bolt having an end which, when embedded into masonry or concrete, expands under a pull on the bolt, thereby providing anchorage. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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bolts: Typically, expansion bolts are glue-in bolts using special epoxy and are used as a type of permanent protection. Because of the lack of natural features, pioneering climbers placed pitons and expansion bolts in the rock to safeguard their ascents, and so that subsequent climbers may climb safely and confidently. |
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