drop bolt

English

Noun

drop bolt (plural drop bolts)

  1. A bolt that holds a trapdoor shut.
    • 1888, Rudyard Kipling, “The Phantom Rickshaw”, in The Phantom 'Rickshaw and Other Tales, Allahabad: A.H. Wheeler and Co., page 9:
      Speaking now as a condemned criminal might speak ere the drop-bolts are drawn, my story, wild and hideously improbable as it may appear, demands at least attention.
  2. A bolt that drops into place when let go.