1 / 6Otoolling HUU5602 Trailer Safety Chain Extensions, 5/16 in x 12 in, 8-Pack
Pack: Otoolling HUU5602 trailer safety chain extensions are listed as an eight-piece set with snap hooks at both ends. The listing specifies 5/16-inch chain and a 7600-pound gross vehicle weight rating, with galvanized steel construction for trailer, camper, and RV towing setups.
At a glance
- Eight extensions are listed, each about 12 inches long, for setups needing multiple connection points.
- The listing describes grade 30 galvanized steel and gives a 7600-pound gross vehicle weight rating.
- Snap hooks at both ends are described as providing quick attachment to trailer couplers and chain links.
- The claimed zinc coating is intended to help resist rust and corrosion in weather exposure.
Pros and cons
Pros
- The eight-piece quantity can serve multiple trailer connection needs or keep spares available.
- Both-end snap hooks make attachment and removal straightforward where the mating points fit.
- The stated 12-inch extension length and 5/16-inch chain size give buyers concrete dimensions to compare with their setup.
Technical specifications
11 specifications| Brand | Otoolling |
|---|---|
| Model | HUU5602 |
| Dimensions listed | 12.2 x 1.97 x 0.59 inches |
|---|---|
| Weight listed | 10.14 pounds |
| Chain length | about 12 inches |
| Chain diameter | 5/16 inches |
| S hook diameter | 0.46 inches |
| Material and grade | grade 30 galvanized steel |
|---|---|
| Listed gross vehicle weight rating | 7600 pounds |
| Quantity | 8 pieces |
|---|---|
| Hooks | 5/16" snap hooks on both ends |
What to know before buying
- The listing describes a 7600-pound gross vehicle weight rating. Confirm that this rating and the hook and chain dimensions meet the requirements of your specific towing setup before use. Its statements about improved road safety and meeting regulations are listing claims, not a substitute for checking applicable requirements.
Who is it for?
A good fit for
- Trailer, camper, and RV owners who need short chain extensions with hooks at both ends.
- Buyers needing multiple extensions for separate trailer connections.
Less suited to
- Buyers needing a longer chain extension or a rating documented for a different load category.

Customer reviews on Amazon
- 5 stars
88% 88% - 4 stars
6% 6% - 3 stars
0% 0% - 2 stars
0% 0% - 1 star
6% 6%
Aggregate ratings lean positive, with most ratings in the five-star category, but a small share are one-star. Without customer comments, the reasons for either response are unknown. Treat the ratings as limited context rather than confirmation of the listed dimensions, material, or towing rating.
Frequently asked questions
How many extensions are listed?
The listing specifies eight pieces.
What length and chain diameter are stated?
Each extension is described as about 12 inches long with a 5/16-inch chain diameter. The listing also gives an S-hook diameter of 0.46 inches.
What capacity does the listing state?
It states 7600 pounds gross vehicle weight rating. Confirm that this figure is appropriate for the intended towing setup.
What are the extensions made from?
The listing describes grade 30 galvanized steel with a zinc coating.

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