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Square Head Bolts

Square head bolts, also called machine bolts are threaded to receive a nut. These decorative bolts come in smooth, hammered and pyramid head styles. To shop by head style click on the image below to see all available sizes in that head apperance.

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#10
1/4"
5/16"
3/8"
1/2"
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  1. 1/4" Dia. Smooth Square Head Bolt
    1/4" Dia. Smooth Square Head Bolt
    $1.00 from $0.82
    Sale
  2. 1/4" Dia. Hammered Square Head Bolt
    1/4" Dia. Hammered Square Head Bolt
    from $2.14
  3. 1/4" Dia. Pyramid Square Head Bolt
    1/4" Dia. Pyramid Square Head Bolt
    from $2.76
  4. 5/16" Dia. Smooth Square Head Bolt
    5/16" Dia. Smooth Square Head Bolt
    $1.40 from $1.01
    Sale
  5. 5/16" Dia. Hammered Square Head Bolt
    5/16" Dia. Hammered Square Head Bolt
    from $2.45
  6. 5/16" Dia. Pyramid Square Head Bolt
    5/16" Dia. Pyramid Square Head Bolt
    from $2.95
  7. 3/8" Dia. Smooth Square Head Bolt
    3/8" Dia. Smooth Square Head Bolt
    $2.10 from $1.13
    Sale
  8. 3/8" Dia. Hammered Square Head Bolt
    3/8" Dia. Hammered Square Head Bolt
    from $2.47
  9. 3/8" Dia. Pyramid Square Head Bolt
    3/8" Dia. Pyramid Square Head Bolt
    from $2.58
  10. 1/2" Dia. Smooth Square Head Bolt
    1/2" Dia. Smooth Square Head Bolt
    $4.95 from $3.31
    Sale
  11. 1/2" Dia. Hammered Square Head Bolts
    1/2" Dia. Hammered Square Head Bolts
    $4.95 from $4.62
    Sale
  12. 1/2" Dia. Pyramid Square Head Bolt
    1/2" Dia. Pyramid Square Head Bolt
    from $5.25
  13. 5/8" Smooth Square Head Bolt
    5/8" Smooth Square Head Bolt
    $8.95 from $6.30
    Sale
  14. 5/8" Hammered Square Head Bolt
    5/8" Hammered Square Head Bolt
    $8.95 from $7.61
    Sale
  15. 5/8" Pyramid Square Head Bolt
    5/8" Pyramid Square Head Bolt
    $8.95 from $8.24
    Sale
  16. 3/4" Dia. Smooth Square Head Bolt
    3/4" Dia. Smooth Square Head Bolt
    $16.25 from $10.55
    Sale
  17. 3/4" Dia. Hammered Square Head Bolt
    3/4" Dia. Hammered Square Head Bolt
    $16.25 from $11.87
    Sale