You might consider using replacing the bolts with monel, which may be cheaper and easier and be a far superior metal than trying to get a machine shop in the States to produce the bolts and galvanize them. Also New Zealand and Australia may be closer and cheaper as well.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Curmudgeon at Large- and rhinestone in the rough, sailing my Farr 11.6 on the Chesapeake Bay