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

Our buyer received a letter from your company regarding an order I put in for some 3” stainless steel U-Bolts. I just wanted to thank you for the kind letter and let you know that your U-Bolts have been completely invaluable to us. We use them in the manufacturing process of an extremely sensitive product. Our previous U-bolts were zinc plated, therefore they became rusted too easily and risked the quality of the product. We hadn’t been able to find another U-bolt supplier with our specific size requirements (without going custom) until I came across your website! We are very grateful for the quality product you have sent us. We will definitely continue to use your company and the services provided.

– C.