Our offices and shop will be closed on Sept. 30 - Oct. 1 and again on Oct. 9..  We will still be shipping these days but will not be available by phone, or email.

We will not be able to do any walk-in sales these days

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1/4" Square Head Machine Bolts

Great black square head machine bolts

  • 1/4-20 threading

Do you need black square nuts to go with these bolts?

**Call for specific thread lengths

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14 Items

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  1. 1/4-20 x 1-1/8
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    1/4-20 x 1-1/8" Machine Bolt
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    $0.20
  2. 1/4-20 x 1.75
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    1/4-20 x 1.75" Machine Bolt
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    $0.30
  3. 1/4-20 x 2
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    1/4-20 x 2" machine bolt
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    $0.30
  4. 1/4-20 x 2.25
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    1/4-20 x 2.25" machine bolt
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    $0.35
  5. 1/4-20 x 2.5
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    1/4-20 x 2.5" machine bolt
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    $0.40
  6. 1/4-20 x 3
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    1/4-20 x 3" machine bolt
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    $0.40
  7. 1/4-20 x 3.25
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    1/4-20 x 3.25" machine bolt
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    $0.60
  8. 1/4-20 x 3.5
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    1/4-20 x 3.5" machine bolt (full thread)
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    $0.95
  9. 1/4-20 x 3.5
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    1/4-20 x 3.5" machine bolt (partial thread)
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    $0.85
  10. 1/4-20 x 4
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    1/4-20 x 4" machine bolt
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    $0.85
  11. 1/4-20 x 4.5
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    1/4-20 x 4.5" machine bolt (partial thread)
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    $1.25
  12. 1/4-20 x 4.75
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    1/4-20 x 4.75" machine bolt
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    $1.30
  13. 1/4-20 x 5
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    1/4-20 x 5" machine bolt (partial thread)
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    $1.50
  14. 1/4-20 x 6
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    1/4-20 x 6" machine bolt (full thread)
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    $1.70
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14 Items

per page
Set Descending Direction