lewis bolt

noun

, Building Trades.

1. an anchor bolt having a conical base around which concrete or lead is poured to hold it.

Word History and Origins

Origin of lewis bolt¹

First recorded in 1870–75

Example Sentences

He found the Lewis bolt fixed to its end, but the wedge had gone, and he climbed to the spot where the end of the beam had been fixed.

From Project Gutenberg