SOLID MATERIAL: 1/2 Inch Clevis grab hooks crafted from high-quality forged grade 70 alloy steel, quenched and tempered then zinc plated, Yellow Chromate Finish.This clevis hook is finished with a durable zinc plating, corrosion-resistant. It resists rain, dirt, snow, mud and other corrosive elements. ROBUST AND RELIABLE: 1/2 Inch chain hooks are made of 70 grade forged steel with a working load limit of 12000 lb and a breaking strength of 48000lbs. 1/2" grab hook is suitable for connecting heavy-duty safety chains or securing transport binder chains. FITS 1/2" G70 TRANSPORT CHAINS: Designed specifically for use with 1/2 inch Grade 70 chains, offering a secure and non-slip connection during towing, hauling, or cargo restraint. The clevis pin design enables quick, tool-free chain attachment EASY TO USE: Connecting the tow hook to your chain is easy, simply remove the split pin and bolt, pass it through the chain, and reattach the split pin and bolt. If the split pin is stubborn, you can use pliers to open it and get the job done in no time. WIDELY APPLICATION: The chain grab hooks perfect for a wide range of applications including trailers, utility carts, winches and fishing boat, etc. These clevis hooks make it much easier to hook things or pull things. 4 Pack 1/2" Clevis Grab Hooks, Grade 70 Forged Steel Chain Hook for 1/2“ Chain, Heavy Duty Tow Hook 12000 Lbs Working Load Limit for Trailer Truck Transport