Quickly and easily connects safety chains from trailer to tow vehicleExclusive design and spring-loaded safety latch help ensure secure attachmentMeets requirements for high-test, transport and alloy chainRated for 18,000 lbs. gross trailer weight (each hook must meet or exceed the GTW)Grade-43 rating for increased tensile strength and abrasion resistanceHook pin and cotter pin provide an easy, secure attachment to safety chainConstructed from high-strength, heat-treated, forged steelProtected by a durable yellow zinc-plated finishLimited lifetime warranty (one-year finish, one-year parts)