3/8 inch Diameter Square U-Bolt

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on orders of $99 or more!

Custom Made in USA!

Square U-Bolt
,

3/8 inch Diameter Square U-Bolt

(19 customer reviews)

Click here for a more in-depth U-Bolt Information Page.

3/8 inch (24 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.

Price range: $8.64 through $14.18 Each U-Bolt

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Dsuban Spring Service Cincinnati Ohio www.dsuban.com,

Custom-Bent 3/8″ Square U-Bolts

Our 3/8-inch diameter square U-bolts are custom-bent to your exact specifications. Primarily engineered for suspension, leaf spring, and body mounting, these heavy-duty fasteners are built to be torqued and are not for ornamental use.
We cold-bend our steel U-Bolts on a hydraulic bender to maintain metal grain orientation for maximum strength.

⚠️ Ordering Rules & Pricing

  • Hardware Included: Every price includes Extra Deep Nuts and Hardened Thick U-bolt Washers.
  • How to Price: Select your measurements and the price will be calculated.
  • Non-Returnable: Custom-bent U-bolts are made to order and cannot be returned.

📏 How to Measure Your U-Bolt

Please read these instructions carefully before ordering. Use your product image as a reference:
  • “C” = Inside Width: Measure the exact inside width of the bend.
  • “L” = Inside Length: Measure from the highest point inside to the very bottom of the leg.
  • “T” = Thread Length: Thread lengths are predetermined based on total rod length. (See below Predetermined Approximate Thread Lengths)

💡 Important Length Note: Your delivered “L” measurement may be up to 3/4″ longer than ordered. We calculate total rod length using even numbers (C + (L × 2)) and rounding to the next even length to ensure your U-bolt is never shorter than you need.

🛠️ Fitment & Torque Behavior

  • Spring-Back Notice: Because of the spring-like nature of steel, small-diameter U-bolts (1/2″ and smaller) may measure slightly wider upon arrival.
  • Self-Conforming: When properly torqued, the U-bolt will naturally conform to the shape of the item it fits over.

⚙️ Thread & Rod Specifications

  • Thread Type: We use SAE (fine) threads exclusively.
  • Maximum Strength: Threads are rolled between dies rather than cut for maximum strength.
  • No Re-Threading: The unthreaded stock is slightly smaller in diameter than the threads. They cannot be threaded further by the user.

🔍 Predetermined Approximate Thread Lengths

Use this quick reference chart to find your thread length. If your thread length is a critical measurement, please call us to confirm before ordering.

Total Rod Material Length Thread Length (On Each Leg)
8″ to 20″ 2″ – 3″
22″ to 30″ 3″ – 4″
32″ to 48″ 4″ – 6″

 

SKU: 3/8 inch dia U-Bolt Square Categories: , Tags: ,

Brand

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 19 reviews

5.0 overall
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  1. Chuck Klein (verified owner) –

    Perfect fit. price is right. fast shipping

    Chuck Klein –

  2. Tom DeJohn (verified owner) –

    Nicely made. I only wish I could have specified the exact length for my application rather than the few selections available. No matter though, I simply trimmed to the size I needed. Thanks!

    Tom DeJohn –

  3. Grieg latterner (verified owner) –

    High quality professionally made u-bolts strong and fit nicely

    Grieg latterner –

  4. Ken R. –

    Great product, exactly as advertised! Perfect fit, fast shipping.

    Ken R. –

  5. Raymond Thompson –

    Order arrived promptly.. The specs were exact.. The problem was solved.. The people who helped me with ordering were very kind… If I need something again I know were to find it.. Thamks

    Raymond Thompson –

  6. Tim k (verified owner) –

    Size was perfect

    Tim k –

  7. Tom Schnur (verified owner) –

    Great product, fast production time, speedy delvery, and ease of ordering

    Tom Schnur –

  8. Jerry Corgiat (verified owner) –

    Very good quality. Great service and helpful phone support

    Jerry Corgiat –

  9. Gene Krinn (verified owner) –

    Easy order. Exact specs. Quick delivery. Wish only could have been zinc dipped.

    Gene Krinn –

  10. Jack Jones (verified owner) –

    They were exactly what I needed.

    Jack Jones –

  11. rick (verified owner) –

    exactly what i needed

    rick –

  12. Dave –

    Absolutely perfect for my old slipper bars! Super fast turn around and shipping.

    Dave –

  13. WILLIAM (verified owner) –

    bolts were as requested and delivered within 2 days with standard shipping.

    WILLIAM –

  14. Philip Huebbers, Sr. (verified owner) –

    Very good product, good service !

    Philip Huebbers, Sr. –

    • Rich (verified owner) –

      Thank You for the review and you business!

      Rich –

  15. Ben Miron –

    Exactly as advertised. Fast shipping.

    Ben Miron –

  16. Frank Higgins (verified owner) –

    Product exactly as I ordered and great quality. Very fast delivery

    Frank Higgins –

  17. Dan Woods (verified owner) –

    Got exactly what I ordered. Great quality and would have been fast shipping but UPS delayed it by a week. That’s the only advice I would give this company, switch to FedEx.

    Dan Woods –

  18. Josh smith –

    good quality bolts, fast shipping

    Josh smith –

    • Rich (verified owner) –

      Thank you, Josh!!

      Rich –

  19. E. Christian –

    Items were shipped and delivered very, very quickly. Thanks, you saved my project!

    E. Christian –

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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.

If you have any questions, please call or email before ordering. We are here to help!

(513) 860-1200