There is a lot of "stuff" which is intended as a paste to coat the mismatched metals which can significantly minimize corrosion. I'd suggest that rather than rely on a non-mechanical connections where there is any strain/stress.I had an issue with deterioration of aluminum around a ss bolt/stud for my raw water pump. JBWeld didn't do it. Devcon did. I've psted about this before, so a search should find it. Comes in small tubes for $14 or large tubs for $120.