The tensile strength of the material used for the U-bolts, puts them in the Grade 5 category.
Ultra-Tow Tie Plate U-Bolt Set, Fits 3in. Round Axles, 6000-Lb. Capacity

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Shipping:
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- 6,000-lb. capacity
- Zinc-plated steel
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Description
Key Specs
Reviews
Q & A
Warranty
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Product Summary
What's Included
- (1) Tie plate U-bolt set
Features + Benefits
- 6,000-lb. capacity
- Zinc-plated steel
Key Specs
| Attribute | Specification |
|---|---|
item# | 21521 |
Brand | Ultra-Tow |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 5.45 LB |
Fits Axle Capacity | 6,000 lb |
| Attribute | Specification |
|---|---|
Axle Diameter | 3 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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· 10 months ago
What grade are these u bolts rated?
1 answer-
UltraTowExpert12· 10 months ago
Helpful?
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· 13 years ago
What is the thread size & can you tell me the center to center width of the ubolt?
1 answer-
UltraTowExpert11· 3 years ago
The thread size on the U-bolt is 1/2"-13. The center to center width of the U-bolt is 3 9/16".
Helpful?
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· 14 years ago
what is the length of the bolt
1 answer-
UltraTowExpert11· 3 years ago
The overall length of the U bolt is 7-1/2 inches.
Helpful?
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Warranty
Manufacturer's Warranty
1 year limited warranty
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Specifications
6,000 lb
5,000 lb
2,000 lb
0 lb
3 in
2 in
2 in
0.5 in
1.75 in
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Zinc-Plated Steel
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(4) U-bolts, (2) Plates
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7.1160 lb
5.7380 lb
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7.875 x 3.125 x 4.875 in
7.0 x 3.75 x 4.375 in
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