CURT Quick Links, Safety Hooks & Clevis Hooks: Rating Guide

CURT Quick Links and Trailer Safety Hooks: Size and Load Guide

A threaded quick link and a spring-latch safety hook both connect hardware, but their load figures do not always mean the same thing. Compare the exact CURT part number, connector shape, size and stated rating before repairing a chain assembly or choosing a trailer safety-chain attachment.

Know which kind of connection you need

Threaded quick link

A closed-loop connector with a screw barrel. Choose by working load limit, opening clearance, chain or cable size and closure.

Safety-latch snap hook

Spring-loaded latch for connection to a suitably sized tow-vehicle attachment point. CURT lists gross trailer weight ratings for the examples below.

Clevis grab hook

Secures to a properly matched chain through a removable pin and cotter pin. Its geometry and load rating differ from those of snap hooks.

Working load limit is not breaking strength. A quick link advertised with an 8,800-lb breaking strength may have a working load limit of only 1,760 lb. For the completed connection, follow the proper application rating and use the capacity of the lowest-rated component. Never add together separate component ratings to claim a greater assembly capacity.

All five quick-link entries below use threaded closures and a zinc-plated finish. CURT 82901 and 82903 are both 5/16-inch links, but 82903 supplies two. CURT 82930 and 82933 are 3/8-inch variants with the same listed working load limit; 82933 is the packaged SKU. The 1/2-inch 82932 has a separate 3,300-lb working load limit.

Part Connection Size Rated value Rating type Pack
82901 Quick link 5/16 in 1,760 lb Working load limit 1
82903 Quick link 5/16 in 1,760 lb each Working load limit 2
82930 Quick link 3/8 in 2,200 lb Working load limit 1
82933 Quick link 3/8 in 2,200 lb Working load limit 1
82932 Quick link 1/2 in 3,300 lb Working load limit 1

The breaking-strength numbers in some product titles describe the force required to cause failure under a particular test, not the maximum permissible operating load. For example, CURT lists 82930 at 2,200 lb working load even though its published breaking strength is 11,000 lb.

Snap hooks and clevis hooks are rated differently

CURT 81266 is a 3/8-inch snap hook rated at 2,000 lb gross trailer weight; 81288 is a 9/16-inch snap hook rated at 5,000 lb gross trailer weight. Both use a spring-loaded latch. The 81503 is instead a Grade 70 clevis grab hook with a 7/16-inch clevis pin and a manufacturer-listed 4,700-lb capacity.

Part Connection Size Rated value Rating type Pack
81266 Snap hook 3/8 in 2,000 lb Gross trailer weight 1
81288 Snap hook 9/16 in 5,000 lb Gross trailer weight 1
81503 Clevis grab hook 5/16 in chain 4,700 lb Manufacturer-listed capacity 1

Do not compare a gross trailer weight rating, working load limit and breaking strength as though they were identical ratings. In every case, the chain grade, hitch attachment points, physical opening and intended application need to suit the entire connection.

Three checks before choosing a replacement hook or link

  1. Identify the original assembly. Note chain diameter and grade, hook style and attachment-point geometry; use the trailer manufacturer’s instructions where available.
  2. Match the rating type. Apply the published capacity in the context CURT uses for that part. The weakest correctly rated component determines the practical limit.
  3. Verify the connection closes properly. Make sure the latch or threaded barrel engages completely, and inspect for distortion, cracking and corrosion before use.

Browse exact CURT hook and quick-link parts

Frequently asked questions

Does an 11,000-lb breaking strength mean I can work at 11,000 lb?

No. CURT quick-link parts 82930 and 82933 have an 11,000-lb published breaking strength and a 2,200-lb working load limit. Use the working-load and application ratings, not the breaking-strength number as a substitute.

Do two 1,760-lb links make a 3,520-lb connection?

Not automatically. Two links in part 82903 are each rated individually. Load sharing and every other component in the assembly must be assessed for the intended use.

Is a clevis grab hook the same as a safety-latch snap hook?

No. A clevis grab hook uses a removable pin to attach to the chain. A snap hook uses a spring latch at its opening. Match the original connection and the stated rating.

Will these hooks fit every towing vehicle?

No vehicle-specific fitment is established. Verify the hitch receiver’s safety-chain loops, hook opening, chain size and required ratings before ordering.

More towing safety references

For complete safety-chain and cable assemblies rather than loose connecting hardware, see CURT trailer safety chains and cables by part number. For securing the trailer coupler latch, see CURT coupler safety pin sizes.

Quick product links: 82901 · 82903 · 82930 · 82933 · 82932 · 81266 · 81288 · 81503

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