Great Old-Fashioned Square head lags for a much more traditional look.  Some of the lag screws we sell are old stock and finish can vary from flat to glossy

3/8" Square Lag Bolt has a 9/16" head, except 3-1/2" length ones which require a 14.5mm socket

See our Sockets for Square heads


500 piece discount = 20% off

1000 piece discount = 30% off

This product has minimum quantities

Bolt Measurement Annotation:

Lags Bolts -  Diameter x Length under Head

Head size is not included in standard annotations

 

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  • 3/8" x 1" Square Lag - Black Zinc
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    $0.30
  • 3/8" x 2" Square Lag - Black Zinc
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    $0.40
  • 3/8" x 2.5" Square Lag - Black Zinc
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    $0.40
  • 3/8" x 3" Square Lag - Black Zinc
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    $0.50
  • 3/8" x 4" Square Lag - Plain
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    $1.00
  • 3/8" x 4" Square Lag - Black Oxide
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    $1.60
  • 3/8" x 3.5" Square Lag - Black Oxide
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    $0.60
  • 9/16" Square Head Socket
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    $12.50