[eschaider]

You might want to consider the aluminum / aluminum alternative for two reasons. The first is the rust question you already are concerned about and the second is the clamping force the rivet exerts on the clamped panels.

From your post I presume your rivets will be for cosmetic purposes rather than functional purposes. Steel shanks will exert the maximum clamping force and could possibly produce visible changes in the appearance of the aluminum immediately adjacent to the rivet.

If you are putting them into a glass hood then the steel shank rivets again are potentially damaging to the glass immediately adjacent to the rivet.


Ed