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| tog·gle bolt (plural tog·gle bolts) |
noun |
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| Definition: |
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bolt with spring-loaded hinged wings: a threaded bolt that has a nut with spring-loaded hinged wings attached and is used especially for securing things to hollow walls. When the bolt is inserted into a hole in the wall, the wings spread open inside, pressing back against the wall's inner surface and allowing the bolt to be tightened.
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