lag screw definition

  • noun:
    • much wood screw having a square bolt head.
    • an iron bolt with a square mind, a sharp-edged bond, and a-sharp point, adjusted for screwing into timber; a screw for attaching lags.
    • See under Lag.
    • A flat-headed screw, made use of principally to attach lags to band-drums.
    • An iron bolt with a square or hexagonal head and cut with a wood-screw thread. It's cylindrical beneath the bead, to be able to admit of switching after it has entered the timber. In the uk labeled as coach-screw.
    • much woodscrew with a square or hexagonal mind which driven in with a wrench

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  • Hypernym for "lag screw"
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