Several years ago, I had several anchors, several hundred feet of 5/16 HI TEST chain, and some other stuff galvanized at Virginia Galvanizing Corporation. The more pounds of 'stuff', the cheaper it gets, and they do a great job. Unloaded my pickup, and about a week later, loaded all the newly galvanized stuff into my pickup - it was even loaded and strapped to a wood
pallet! Give them a call and get the rates. Still cheaper than new chain. Be sure to check to see how worn the chain is.... VA Gal. is just off I-95 north of Richmond.
Tom in Kinsale, VA