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

Good Afternoon Sir, I received your letter in the mail today. I was ecstatic to receive and read it. It was wonderful doing business with you and your company. The first initial response was great, they got my order in pronto. Even after my mistake of ordering the wrong size of bolts, they were very accommodating and understanding and worked with me to get the right ones ordered. I will definitely keep you and your company in mind when someone is needing your line of product. I appreciate and thank you for all your help. P.s. Thank you for the glasses clothe, with having a 5 almost 6 year old my phone is in need of constant cleaning. It will be well used.

– W.