plural of bolt-rope

(engineering) A theoretical circle passing through the center points of bolt holes positioned with equal spacing.

A fastening device consisting of a bolt and a pair of hinged, usually sprung, wings threaded at the hinge to receive the bolt, used by inserting the bolt with wings folded into a small hole in a sheet material to the point where the wings unfold and the bolt can be tightened.

(climbing) Being a bolted traditional climb.

A bolt with a chamfered or faceted head.

A bolt with a nicked or barbed shank which resists retraction, as when leaded into stone.

A bolt with a head on one end and a thread on the other end, to be screwed into some fixed part, instead of passing through the part and receiving a nut.

A bolt which has a mortise near the end, and is secured by a cotter or wedge instead of a nut.

A bolt that passes through a thimble that is placed between the parts connected by the bolt.

(idiomatic, transitive) To examine thoroughly, so as to separate or discover everything important.