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lag screw

1

noun

  1. a heavy wood screw having a square or hexagonal head driven by a wrench.


lag-screw

2

[ lag-skroo ]

verb (used with object)

  1. to fasten with a lag screw.

lag screw

noun

  1. a woodscrew with a square head
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of lag screw1

First recorded in 1870–75
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Word History and Origins

Origin of lag screw1

from lag ³; the screw was originally used to fasten barrel staves
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Example Sentences

They’ve also replaced large lag screws — because why hand crank something for 10 minutes, when your power tool can do the work in 10 seconds?

Holes are provided in the Press for mounting by lag screws or bolts.

The girder molds were 1½-in. stuff, and to the side pieces were nailed 1×4-in. cleats; the bottom and side pieces were connected by ⅜×4-in. lag screws spaced 28 ins. apart.

In the chair shown, the joints are reinforced by the addition of lag screws.

Have the two end rails exactly the same length and proceed to fasten the front and back posts to them, using 4-in. lag screws and washers.

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