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1/2 inch Diameter Square U-Bolt

(45 customer reviews)

1/2 inch (20 threads per inch, SAE) Diameter Semi-Round U-Bolt with Deep Nuts and Washers only. No tie plate is included or available. 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.

$8.78$22.38 Each U-Bolt

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1/2 inch Diameter Square U-Bolt is Custom Bent from the choices you make here. Please read the directions carefully.

1/2 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 1/2 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: 1/2 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 45 reviews

5.0 overall

Add a review

  1. Ryan Daly

    Good u bolt at good price. Would be nice to have slightly smaller lengths though as 3 1/2″ would’ve worked better for us.

    Ryan Daly

  2. lawrence byington (verified owner)

    Was what i asked to be made fit great. Highly recommended.

    lawrence byington

  3. William Milette (verified owner)

    The dimensions where right on.
    The service was excellent !

    William Milette

  4. Landy (verified owner)

    Love it


  5. john n (verified owner)

    Exactly what i ordered. Very pleased. Will use them again.

    john n

  6. Don (verified owner)

    Just what I needed, worked great to mount my spare tire on my 5th wheel


  7. Dick Davis (verified owner)

    Exactly what I ordered.

    Dick Davis

  8. Tom t (verified owner)

    Exactly what was ordered very fast shipping

    Tom t

  9. Burke Schmidt (verified owner)

    I ordered 1/2″ diameter square u-bolts to mount anti drag wheels on a class B van. They were shipped very quickly. They are exactly what I needed to complete the job, are robust, and fit as if they were part of the wheel package. They’re perfect. Thank you

    Burke Schmidt

  10. Paul Brittenham (verified owner)

    Great selection and price, very quick shipping. Will do business with them any time I can. Thanks for the great customer service.

    Paul Brittenham

  11. Charles H Shreve (verified owner)

    After the first set which was the wrong size this order was the right ones. Thanks

    Charles H Shreve

    • Rich (verified owner)

      Thank you. Glad to be of assistance!


  12. David Chaffin (verified owner)

    Delivery was prompt and it was exactly what we ordered.

    David Chaffin

  13. Larry Picard, Picard’s Auto, Truck, & Ind. (verified owner)

    Would like a jobber price for resale when bought in quantity…..other than that, No problems… Thanks

    Larry Picard, Picard’s Auto, Truck, & Ind.

  14. Chris Zeller (verified owner)

    All companies should be as efficient as this one . Fast and accurate.

    Chris Zeller

  15. kimberly field

    exactly as ordered – shipping was fast

    kimberly field

  16. Matt Murphy (verified owner)

    Had clamps made they were EXACTLY what I ordered they were made and shipped fast VERY HAPPY

    Matt Murphy

  17. SAM MUADDI (verified owner)



  18. Walter (verified owner)

    Needed for a boat trailer modification. Order was made and received in two days, VERY fast service and fit perfectly !!!


  19. Don Jones (verified owner)

    Perfect fit, good quality, good value and delivered on time. Also seem to provide a good selection of products. Will be my first option for similar needs in the future.

    Don Jones

  20. William Goff (verified owner)

    Great service, fast shipped the next day. U bolts work as expected

    William Goff

  21. David (verified owner)

    Everything came exactly how I needed it. I will surely be a repeat customer.


  22. Thomas E Johnson (verified owner)

    I was very pleased with the Precision and quality of the u-bolts that I ordered. Shipping was as stated and I felt the price was reasonable.

    Thomas E Johnson

  23. scott (verified owner)

    I ordered special size square u-bolts online. Super fast shipping and great quality. Ill be a repeat customer.


  24. dana tuckness (verified owner)

    excellent product, shipping was a little high

    dana tuckness

  25. John Waterman (verified owner)

    Bends were precise and I received shipment sooner than expected!

    John Waterman

  26. Robert J Mendez (verified owner)

    Items were as ordered. Nice, quick service.

    Robert J Mendez

  27. Tad bissell (verified owner)

    Excellent service

    Tad bissell

  28. edward blaine (verified owner)

    excellant fit, very quick delivery

    edward blaine

  29. Jeff Tomski (verified owner)

    Fast Service and Good Prices. Was impressed.

    Jeff Tomski

  30. Randall Schmidt (verified owner)

    Arrived quickly and as ordered. These should work well for my project.

    Randall Schmidt

  31. Jeremy Frick (verified owner)

    Perfect. Thank you. Definitely worth it.

    Jeremy Frick

  32. David

    Great Job on u-bolts! would use them again thank you for good business !


  33. Bill Miller (verified owner)

    Excellent products, super fast service, exactly what I needed. I called in with a change in my order and the issue was handled immediately. The gentleman could not have been nicer even though the change was totally my mistake. I’ll definitely order from them again.

    Bill Miller

  34. Harold (verified owner)

    Quick shipping and understood my need. Recommended Highly.


  35. Brian (verified owner)

    Well designed, be careful, length is a little shorter than specs, so order the next length if length is tight.


  36. Brian Wieman (verified owner)

    Good quality item and I received them very quickly as well

    Brian Wieman

  37. Mary Mozer (verified owner)

    I ordered this for my husband and it was exactly what he needed. It was a great product, ordering was easy, and shipping was quick. Very pleased.

    Mary Mozer

  38. Jeff Staley (verified owner)

    Great customer service! I called with questions and they were answered immediately by someone who clearly liked what they were doing. Had my u-bolts sooner than expected.

    Jeff Staley

  39. Kenneth Dunlap (verified owner)

    A very pleasant business transaction, I’m very satisfied with my purchase and the quality of the product.

    Kenneth Dunlap

  40. Nicholay Osokin (verified owner)


    Nicholay Osokin

  41. Leslie Smith (verified owner)

    Prompt accurate service. Much appreciated.

    Leslie Smith

  42. Michael Schaefer (verified owner)

    Exact fit, quick delivery, quality product.

    Michael Schaefer

  43. Nick Garrigan

    Great product only place that actually made the size I needed fast shipping too!

    Nick Garrigan

  44. JHW

    Excellent quality u bolt.


  45. Bill Culek

    Good product at good price. Outstanding customer service. Highly recommend

    Bill Culek

Free UPS Ground Shipping on orders of $99 or more!


U-Bolt Information

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

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