Grade 80 Coupling Link Aazon.co: AUTORICH Safety Chain Connector Link, 1/2IN Tow Hitch Grade 80 Alloy Steel Durable hammerlock chain connector: The surface of hammer lock coupling link is coated with red powder for rust and corrosion resistance and durability. These work perfectly with tractors, forklifts, RVs, UTVs, trucks, trailers, and SUVs - basically anything that needs secure towing connections. Each pack comes... Safety Lock Design: 1/2 hammerlock tow come with excellent anti-drop pin with anti-drop buckle, can lock tightly and ensuring safety 10mm X 2.5t Safety Chain, Hammerlock And Holder Kit - CTA If you have any questions in the process of purchase or use, please contact us in time, we are happy to serve you A little grease can be applied to the end of the dowel to make installation easier. Hammerlock Chain Connector Grade 80 6mm - TWL NZ Application: Hammerlock safety chain connector can be used to quickly assemble,dismantle and reassemble. High quality hammerlocks: The hammerlock coupling link is made of grade 80 drop forged alloy steel heavy structure, sturdy, anti-wear. And the hammerlock fits for super duty truck such as Chevy Ford GMC.