Engineered for Serious Strength: Trailer hitch shackles for towing and off-road recovery; sold as a pair, each shackle is rated to 8,800 lbs with a 4-ton working load limit. Universal Fit: Each 1/2" small shackle includes a 5/8" bolt for a secure connection; engineered to fit any steel BulletProof Hitch, they accommodate virtually any safety chain size and mount to most standard hitch receivers. DOT Compliant: Tow shackles are stamped with working load limit in accordance with the Department of Transportation regulations. Built to Last: Heavy duty shackles crafted from high-strength alloy steel and protected with our signature textured black powder coat; these trailer chain shackles provide exceptional durability and long-lasting corrosion resistance. Easy to Use: Each 1/2 shackle installs in seconds — simply unthread the 5/8" bolt, attach your chain, and retighten.