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9/16 inch Diameter Square U-Bolt

(17 customer reviews)

9/16 inch (18 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.

$9.07$24.30 Each U-Bolt

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9/16 inch Diameter Square U-Bolt is Custom Bent from the choices you make here. Please read the directions carefully.

9/16 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 9/16 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: 9/16 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 17 reviews

5.0 overall

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  1. Harry Haskell

    Rememeber when ordering these square U-bolts that the ID for the legs is about 1/2″ shorter than Dsuban says it is. You lose 1/2 in the bending. So order an inch longer than you need. Dsuban sent me free ones because of this.

    Harry Haskell

  2. Ric

    Exactly as described


  3. Ric

    Good quality and good price


  4. Ken Andrews (verified owner)

    Exactly what I needed fit perfectly

    Ken Andrews

    • Parts Department (verified owner)

      thanks alot for the order

      Parts Department

  5. Kyle dixon (verified owner)

    Website was easy to use. Pricing is best anywhere. Shipped quickly and the product is 100% perfect for my custom built truck. Thanks

    Kyle dixon

  6. Ken Frank (verified owner)

    Great buy just what I needed, fit right on. Thanks

    Ken Frank

  7. Tye Thomas (verified owner)

    U bolts worked great and shipped quick. Perfect fit and high quality

    Tye Thomas

  8. Michael (verified owner)

    Great U bolts, they were bent to exact dimensions which made install much nicer. The shipping was very fast!! The price was much better than any local shop I could find.


  9. william schiefer (verified owner)

    Extremely pleased with the product and service. We received them faster than we expected.

    william schiefer

  10. Jeremy (verified owner)

    Quick and easy order, nice quality U bolts and a decent price.


  11. tecbuildinggroupllc (verified owner)

    All was well correct , Correct dimensions and order was received in a timely manner.
    I will recommend and reuse the services again.


  12. Lauritz Christian Jensen (verified owner)

    Exactly what I needed, came very fast! Look forward to doing more Business with You!

    Lauritz Christian Jensen

  13. Vitalik G (verified owner)

    I have nothing to complain about, the price is excellent, the delivery is fast, the quality is good.

    Vitalik G

  14. Trent Roberts (verified owner)

    100% would recommend to any friend looking for U-bolts! Shipped within 3 hours of me ordering. Outstanding

    Trent Roberts

  15. Andrew (verified owner)

    Great product. I used these u bolts on my 1979 gmc k35 with 6″ lift blocks. I needed custom length for the 1 ton spring pack


  16. Sandi k (verified owner)

    Fast service and delivery! Totally satisfied. Product is A-number one.

    Sandi k

  17. Josh smith (verified owner)

    Great company, fast service quality bolts

    Josh smith

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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.