- bottom bolt
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a bolt at the bottom of a door or the like, sliding into a socket in the floor or sill and equipped with a device for keeping it raised when the door is not fastened.
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Universalium. 2010.
bottom bolt
Look at other dictionaries:
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extension bolt — noun : a bolt set flush and vertically (as at the top or bottom of a door) having a long extended rod by which it may be conveniently slid into place * * * a bolt fitted into a mortise in a door or the like, sliding into a socket in the head or… … Useful english dictionary
Dutch door bolt — n. a bolt which secures the top section of a Dutch door to the bottom section … Locksmith dictionary
