BBB is a low carbon steel chain designed with short, compact calibrated links suitable for windlasses and general anchoring. Hot-dip galvanized for maximum wear and corrosion resistance. Sold in Standard Pack lengths only. Not currently sold by the footGrade 30 Hot-Dip Galvanized BBB Windlass Chain SpecificationsSizeInside Link LengthMWLWeightStandard Pack1/4".87"1,300lb..34lb./ft.800'5/16"1"1,900lb..86lb./ft.550'3/8"1.09"2,650lb.1.43lb./ft.400'