Proof Coil chain in precut lengths make it easy to outfit your anchor.Select from handy lengths of hot-dip galvanized Precut Proof Coil Chain, either plain or coated. Proof Coil chain is made of low-carbon steel and designed for ordinary marine applications, but not for use in most windlasses due to its long links. The Proof Coil chain offered here is manufactured to I.S.O. specifications, except for the 3/16" size, which is manufactured to NACM specifications (link length is longer than I.S.O.). Oversized end links provide for easy shackle attachment. Remember that the Safe Working Load is a conservative rating for safety and should not be exceeded, although the breaking strength is generally 3 to 4 times greater. Precut in 4', 5' and 6' lengths. Made in USA.Hot-Dip GalvanizedSuperior to the zinc electroplating used by most other US chain vendors, Acco chain is hot-dip galvanized for extended life and corrosion resistance.Polymer-CoatedThe polymer coating is a thin, flexible coating that improves the chain's appearance and provides a modest amount of protection for your deck.Vinyl-CoatedThe vinyl coating is thicker, which limits the flexibility of the chain but provides outstanding protection for your deck.