Forged with high-strength, low-alloy carbon steel. This 4-pack of 1/2-inch Clevis Grab Hooks from US Cargo Control is built for the job. They're forged from high-strength carbon steel and stamped G70 (Grade 70), with a massive working load limit of 11,300 pounds and a break strength of 45,200 lbs This Clevis Grab Hook is commonly used in load binding applications as an end on a transport chain. US Cargo Control Grade 70 Chain with Clevis Grab Hooks, 1/2 Inch x 20 Foot Transport Chain, 11,300 lbs Working Load Limit, 1/2 Inch Chain Tiedown to Secure Cargo to a Flatbed Trailer or Truck 1/2 Inch Grade 70 Hooks US Cargo Control 1/2 Inch Grade 80 Clevis Grab Hook Yellow Zinc Cargo Hook Working Load Limit: 11,300 lbs Kinedyne 1/2" Transport Grade 70 Clevis Grab Hook This hook is stamped with G70 for easy identification and meets stringent DOT regulations for Grade 70 Transport when used with 1/2 Grade 70 Transport chain. When used with 1/2 chain, the shallow throat opening allows for easy and secure connections and ensures that your chain won't slip.