5/8 inch Diameter Square U-Bolt

Rated 5.00 out of 5 based on 7 customer ratings
(7 customer reviews)


5/8 inch Diameter Square U-Bolt with Deep Nuts and Washers only. No tie plate is included, see below for options.

Please note the inside corners of a Square Custom U-Bolt are slightly rounded and are not perfectly square as pictured.



5/8 inch Diameter Square U-Bolt is Custom Bent from the choices you make here. Please read the directions carefully.

5/8 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)
  • “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″
SKU: 5/8 inch dia U-Bolt Square Categories: , Tags: ,


John Dsuban Spring Service Inc.

Weight 0.94 lbs
Inside Width

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Inside Length

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ITEM: is usually in stock. If u-bolt is for suspension use, re-tighten after the first 500-1000 miles. As new or repaired springs wear in, some settling of the spring pack will occur. Even a minor amount of this settling can cause a dramatic reduction in clamping force.


  • .625 (5/8) inch threads with a SAE thread pitch of 18 TPI
  • U-bolts up to 9/16 are Grade 5, while 5/8 and above are Grade 8.

We do not stock any form of stainless steel material. We do not offer any type of plating or galvanizing. All u-bolts we make are oil finish.

Physical properties:

150,000 PSI Minimum Tensile Strength; 130,000 PSI Minimum Yield Strength; 120,000 PSI Proof Load; 35% Reduction of Area; 10% Elongation. U-Bolts produced to SAE-J429 specification. This material is a cold drawn, stress relieved, micro-alloyed, 1541 modified steel. Please note that not all bending widths can be ordered on our web site.

For other information on our U-Bolts, please visit our U-Bolt information page.

Based on 7 reviews

5.0 overall

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  1. Rated 5 out of 5

    Michael Hornaday (verified owner)

    I received the custom made u bolts, built to my specs in a timely manner that worked perfect for my application. Good quality product would recommend to anyone.

    Michael Hornaday

  2. Rated 5 out of 5

    John Ward (verified owner)

    Product was exactly what I needed, quick shipping, great job!

    John Ward

  3. Rated 5 out of 5

    Sean Taylor (verified owner)

    U-bolts worked great on an old JD 2.5″ toolbar. Glad I found your company online. Thanks

    Sean Taylor

  4. Rated 5 out of 5

    Daveryc62 (verified owner)

    Easy to use website, everything ordered was receive on time.
    good quality.
    will order again from Dsuban


  5. Rated 5 out of 5

    Ralph Morrell (verified owner)

    Nice product and delivered as promised.

    Ralph Morrell

  6. Rated 5 out of 5

    Logan (verified owner)

    Great product with an affordable price for custom ubolts. Received in a timely manner as well.


  7. Rated 5 out of 5

    mike roy (verified owner)

    square U-bolts were as ordered well packaged and on time. If I need more u-bolts I will order from you again! Thank you, Mike Roy

    mike roy

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