5/16" Zinc-Plated Steel Carabiner Snap Hook - (2, 5, 10, 20, 35, 100 Packs) 5/16" Snap Opening, 3/8" Eye Diameter, 280 lb Work-load limit Versatile binding, rigging & anchoring hardware - quick connect/dis-connect of ropes, chains, straps Push gate in to open - auto-close spring gate with interlock tooth prevents force open Zinc galvanized steel for superior strength, excellent rust & corrosion resistance