This set is compatible with 1.75" wide leaf springs.
Ultra-Tow Tie Plate U-Bolt Set, Fits 2-3/8in. Round Axles, 3500-Lb. Capacity, Zinc-Plated Steel

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- Fits 3,500-Lb. Axles: Designed for 2-3/8in. round trailer axles
- Fits 1.75in. Springs: Compatible with 1.75in.-wide leaf springs
- Zinc-Plated Steel Construction: Resists corrosion for long service life
- Complete Installation Kit: Includes (4) U-bolts and (2) tie plates
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Description
Key Specs
Reviews
Q & A
Warranty
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Product Summary
What's Included
- (4) U-bolts (2) Plates
Features + Benefits

- Fits 3,500-Lb. Axles: Designed for 2-3/8in. round trailer axles
- Fits 1.75in. Springs: Compatible with 1.75in.-wide leaf springs
- Zinc-Plated Steel Construction: Resists corrosion for long service life
- Complete Installation Kit: Includes (4) U-bolts and (2) tie plates
Key Specs
| Attribute | Specification |
|---|---|
item# | 21514 |
Brand | Ultra-Tow |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 4.66 LB |
Fits Axle Capacity | 3,500 lb |
| Attribute | Specification |
|---|---|
Axle Diameter | 2.37 in |
Spring Width | 1.75 in |
Material | Zinc-Plated Steel |
Kit Includes | (4) U-bolts, (2) Plates |
Reviews
Questions & Answers
Questions
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· a month ago
What size spring do they fit?
1 answer-
UltraTowExpert12· a month ago
Helpful?
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· 3 months ago
Where are these made?
1 answer-
UltraTowExpert11· 3 months ago
The tie plate U bolt kit is manufactured in the United States.
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· 3 years ago
Hello I'm just wondering if all the parts in the picture come together.
1 answer-
UltraTowExpert12· 3 years ago
This kit includes four U-bolts, eight nuts and two spring plates as pictured.
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· 5 years ago
what is the inside length? what grade steel is this?
1 answer-
UltraTowExpert10· 5 years ago
The inside length is 5-3/8". This is made from grade 10-12 material.
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· 11 years ago
Are these U bolts and plates zinc plated?
1 answer-
UltraTowExpert· 11 years ago
These are zinc plated.
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· 12 years ago
What is the thread size of the U bolts?
1 answer-
UltraTowExpert11· 3 years ago
The U bolts will have 2 inches of thread on each end. The U bolt is 1/2"-13 TPI.
Helpful?
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· 14 years ago
How long this U-Bolts are? top to battom
1 answer-
UltraTowExpert11· 3 years ago
From top to bottom the U bolt measures 5.75" long.
Helpful?
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Warranty
Manufacturer's Warranty
1 year limited warranty
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Specifications
3,500 lb
2,000 lb
5,200 lb
3,500 lb
2.37 in
1.75 in
3 in
1.75 in
1.75 in
1.75 in
1.75 in
1.75 in
Zinc-Plated Steel
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(4) U-bolts, (2) Plates
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