toggle bolt

名词 n.
中文释义

英文释义

名词 n.
  1. 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.

词形变化

toggle bolts plural

词源

From the resemblance of the hinged wings to a toggle.
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