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7/16 inch Diameter Square U-Bolt

(16 customer reviews)

7/16 inch (20 threads per inch, SAE) Diameter Square U-Bolt with Deep Nuts and Washers only. No tie plate is included, see below for options. Oil finish only, no plating/coatings available. Grade 5.

The corners of our Square U-Bolts are not perfectly square and are slightly rounded for strength. To see sample, click here.

Price shown is for each U-Bolt including Deep Nuts & Washers. You must order in multiples of 2.

$9.58$16.06 Each U-Bolt

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7/16 inch Diameter Square U-Bolt is Custom Bent from the choices you make here. Please read the directions carefully.

7/16 inch Diameter Square U-Bolt
  • Pricing includes Extra Deep Nuts and Hardened Thick U-bolt Washers
  • Custom bent U-bolts are non-returnable.

Measure your U-bolt using the image above to to get your pricing.

  • “C” = Inside Width    (measure inside width)
  • “L” = Inside Length   (measure from the highest point inside to the bottom of the leg of U-bolt)
    • Note that the “L” measurement (length) may be slightly longer and is not exact depending on total rod length. The reason the “L” measurement may be longer (up to 3/4 of an inch) is we add “C” and “L x 2” measurements to get the total material length which is made in even lengths, 22, 28, 38 etc. We do not want your U-bolt to be shorter than the length you ordered.
  • “T” = Approximate Thread Length is calculated by multiplying 2 X “L” plus “C” (which equals the overall length of rod material before bending)
    • Approximate thread lengths are predetermined and are listed below;
      • (Total rod length = Thread length on each leg)
        • 8″   to 20″ = 2″-3″
        • 22″ to 30″ = 4″
        • 32″ to 48″ = 6″

These 7/16 inch Diameter Square U-Bolts are for suspension, leaf spring and body mounting primarily, but have hundreds of other uses. We bend our own U-bolts on a hydraulic bender cold so the grain of the metal stays oriented in the right direction for maximum strength.

The only thread pitch we use are SAE (fine) and are manufactured by rolling a rod between dies creating threads for maximum strength. This makes the non-threaded part of the stock slightly smaller in diameter than the diameter of the threads and are not thread-able beyond the way they are.

Small diameter U-bolts (especially 1/2 diameter and smaller) are more susceptible to measuring slightly wider due to the spring-like nature of the steel, but U-bolts, when properly torqued will typically conform to the shape of the item it is fitting over.

This product is not for ornamental use and is designed to be torqued.

SKU: 7/16 inch dia U-Bolt Square Categories: , , , Tags: ,


Dsuban Spring Service Inc.

Dsuban Spring Service and Dsuban.com is a repair facility and distributor of all types of suspension manufacturers. Call on us for your truck and trailer needs.
Dsuban Spring Service Cincinnati Ohio www.dsuban.com,

Based on 16 reviews

4.9 overall

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  1. Brent (verified owner)

    Product arrived promptly and exactly how I ordered them


  2. Harold McCasland (verified owner)

    Great service prompt and helpful information. Excellent product and a great price too.Thank you.

    Harold McCasland

  3. Tom D (verified owner)

    These custom U Bolts are just what I need for my boat trailer. I could not find the length that I needed elsewhere and at a reasonable price. They arrived quickly and well packaged. I highly recommend Dsuban for custom U Bolts.

    Tom D

  4. Tom O’Toole (verified owner)

    It’s funny; I was going to say the same kind of thing as Tom D. I also used them on my boat trailer. Well made and fit the trailer frame like a glove. I know where I’ll be going the next time I need custom hardware.

    Tom O’Toole

  5. CPS (verified owner)

    I had an odd size square bend u bolt that I needed for my utility trailer tongue Warn winch mounting plate. Dsuban had what I needed! U Bolts came with washers and hex nuts (Awesome!). Both U Bolts were well made, threads were clean, and overall size was exactly what was promised. I recommend there products, and will purchase from them again! Shipping was fairly quick considering I live in Texas.


  6. Dan (verified owner)

    Fast delivery looks and works great.


  7. leadsledmerc (verified owner)

    Great service, great product, very fast delivery, and very reasonable price…overall excellent!!!


  8. R Lee (verified owner)

    I can not say enough great things about Dsuban. The online page explained everything perfectly. My u-bolts shipped the same day and arrived exactly as expected. Perfect fit on my ‘63 Ford van. American made quality and excellent price. I highly recommend and will use their services again

    R Lee

  9. Terry (verified owner)

    I build custom Hot Rods and Welding and Fabrication and as always its Just what I ordered fast service great to deal with.


  10. Thurman Harper (verified owner)

    Product was perfect no complaints I just wish the shipping was cheaper 17.95 to ship 4 u bolts is high I think but when you need it you need it.

    Thurman Harper

    • Rich

      Thank you for the review! Our shipping charges are the actual cost from UPS using a software link to their site. We do not make anything on shipping. We hope you come back for your U-Bolt or other needs.


  11. David (verified owner)

    Received my order promptly (2 days). Hard to find U bolts were perfect. Online ordering simple.


    • Parts Department (verified owner)

      Thanks David glad we could help

      Parts Department

  12. Steve (verified owner)

    The U-Bolts were to exact specs and made of high quality materials. The hardware was solid as well. Arrived promptly. No complaints, would purchase again from company.


  13. Eric Norheim (verified owner)

    Great price and quality

    Eric Norheim

  14. Michele (verified owner)

    Quick shipment


  15. Mel

    The U-bolt was exactly as expected. Two suggestions for the future. It was unclear to me how high up the threads go on the turn downs. I would suggest to thread farther up. I ran out of threads on my appliction


  16. JPW

    Superior product! Threads on bolts cover a large area helping it fit the application and nuts are extra long to help keep from slipping. I purchased these for my 24 gang disc plow and I can tell they are going to work better than factory.


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U-Bolt Information

Custom U-Bolts are made to your specifications, so measure carefully!

Before ordering, please visit our U-Bolt Information Page.