Heavy-Duty Galvanization (≈144 µm): Hot-dipped zinc coating around ~144 microns helps block saltwater corrosion and surface wear, with full-link coverage to protect high-contact areas at the crown and welds—engineered for frequent drops/retrievals on windlass systems. DIN 766 BBB Geometry for Windlasses: Precision-made to DIN 766 BBB link dimensions for predictable gypsy engagement and smooth handling; A/B/C dims: 0.32" × 0.95" × 0.41". Direct replacement for Acco BBB; confirm gypsy size and run a 3-link seating test; not compatible with non-BBB chain wheels. Robust Working Capacity: WLL 2,400 lb and Breaking Load 9,600 lb support a wide range of cruising setups. Follow manufacturer guidance, keep within WLL, and never use for overhead lifting. Periodically check for elongation or pitting in high-load sections. Sizing, Weight & Handling: Available in 1–200 ft lengths. Chain weight 1.17 lb/ft—~58.5 lb (50 ft) and ~117 lb (100 ft)—to help you plan rode weight vs. bow trim and ensure locker space and support hardware (bow roller, cleats) are appropriately rated. Marine-Grade Reliability: Uniform pitch and clean welds minimize snags through windlass wildcats and bow rollers; suited for primary ground tackle, secondary anchors, and mooring setups. Rinse after use; occasional light lubrication on contact points can reduce galling. Size: 5/16" A (Dia): .32" B: (Inner L): .95" C: (Inner W) 0.41" WLL 2,400 lb BL 9,600 lb Weight 1.17 lb/ft. Freight shipments over 150 lbs require a commercial address with a loading dock or additional charges may apply.