Established in 1988

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Square Head Bolts

Square Head Bolts

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Square Head Bolts offer a large bearing area for positive gripping with an open or adjustable wrench which means less slippage. Head width or wrench size is measured across the flats. Length is measured from under the head. All have a Class 2A thread fit.

Have a question about our manufactured square head bolts? Contact our team directly by phone or by using our secure online form. We look forward to speaking with you!

Square Head Bolt & Screw Inventory

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  • Name
  • Diameter
  • Thread
  • Length
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  1. Diameter: 1/4
    Thread: 20
    Length: 3/4
  2. Diameter: 1/4
    Thread: 20
    Length: 3/4
  3. Diameter: 1/4
    Thread: 20
    Length: 1
  4. Diameter: 1/4
    Thread: 20
    Length: 1 1/4
  5. Diameter: 1/4
    Thread: 20
    Length: 1 1/2
  6. Diameter: 1/4
    Thread: 20
    Length: 2
  7. Diameter: 1/4
    Thread: 20
    Length: 2 1/2
  8. Diameter: 1/4
    Thread: 20
    Length: 3 1/2
  9. Diameter: 1/4
    Thread: 20
    Length: 4
  10. Diameter: 5/16
    Thread: 18
    Length: 5/8

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Click here to Request a Quote

or call us today at 1-866-895-0627 to inquire about a quote from U-Bolt-It

My experience couldn't have been better. My quotation request was answered very quickly and the order process was very easy thanks to John Wilson. We received the product by the promised due date, making it possible to fulfill orders on our end. We are a third generation small business in Arlington Indiana and nothing is more important to us than the quality of our product and the satisfaction of our customers. It's great to do business with a company with these same values. We will be reordering from your company in the near future.

– D.

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