Extreme Max 3006.6605 BoatTector Galvanized Steel Anchor Shackle, 5/16" 5/16" galvanized steel anchor shackle Working Load Limit: 1100 lbs. / Breaking Strength: 4400 lbs. Hot-dipped galvanized steel construction, designed for use in freshwater applications Drop forged and weldless for increased strength Rounded design handles multi-directional loads