Made especially for construction work and tower climbing, as well as safety and rescue, this patented ANSI certified steel swivel snap hook is perfect for fall protection when you need it most. This Double Action Forged Steel Swivel Snap Hook is patented and features a double action, self-locking gate mechanism. Made from high tensile forged steel and a yellow / silver zinc plate finish, this powerful swivel snap hook is super strong with a minimum breaking strength of 45kN.