Send me a PM with your "snail mail" address and I'll send you some corrosion-coated screws (with some spares) for you to consider using. IF you replace the small screws one at a time, which is what I did to replace some SS screws I bought at Lowe's, you should be okay w/o any issues. It worked for me and so far no signs of any leakage after 7+ years.

Merry Christmas, Dennis E.