Made from quality, passivated 302 Stainless Steel.
NOTE: Quantity discount for bulk purchase below.
I had these screws custom made. They are passivated 302 stainless steel. Passivation is an extra step in the process that has the screws treated in an cleaner/acid bath that cleans the screws to a bright finish and then promotes an oxidized surface that further inhibits corrosion. This step is expensive but worth it.