Red Hound Auto 5 Shackles 3/4" Galvanized D Ring Marine Anchor Bow Screw Pin 4.5 Ton New 5 Galvanized Shackles with Screw Pins 3/4" thick. 5" long. 7/8" pin diameter 4.5 ton W.L.L. (working load limit) Durable galvanized and powder coated finish. Heavy duty and Weather-resistant, product can withstand harsh weather conditions