3/8″. Shank opening: 11/16″. Safe working load: 800 lbs. Break strength: 4,000 lbs. Stainless steel anchor shackles with screw pin assembly. Measured by pin thread. Straight D anchor shackles make connecting and disconnecting from one side of the shackle chain to an anchor easy while keeping it secure. Blister pack. Corrosion resistant.
