Standard 1/4" bolts have a 3/8" head and and use a 3/8" square socket

Some special 1/4" lag bolts with over-sized head - 7/16" head.

This product has minimum quantities.

500 piece discount = 20% off

1000 piece discount = 30% off

Square Head Lag Bolt Measurement Annotation: Lags Bolts - The diameter x length under the head

Head size is not included in standard annotations for lag bolts.

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  • 1/4" x 1" Square lag - Black Oxide
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    $0.30
  • 1/4" x 1.25" Square Lag - Black Oxide
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    $0.30
  • 1/4" x 1.5" Square Lag - Black Oxide
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    $0.35
  • 1/4" x 2"  Square Lag - Black Oxide
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    $0.35
  • 1/4" x 2.5" Square Lag - Black Oxide - Big 7/16 head
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    $0.40
  • 1/4" x 3" Square Lag - Black Oxide
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    $0.35
  • 3/8" Square Head Socket
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    $10.00
  • 7/16" Square Head Socket
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    $10.00