Packaged grade 70 transport chain assemblies are offered in a convenient storage pail to keep organized in your tool box or vehicle. Grade 70 chain is specifically designed to provide a light, yet strong chain for tie downs. Made from carbon steel, heat treated for strength and zinc-plated gold chromate for corrosion resistance. Made to NACM standards to meet the specifications of the DOT and CCMTA for tie down use. All clevis hooks are made of heat-treated alloy steel.