64 Valiant wagon tailgate trim

Another one snapped off - I know iron and aluminum don’t mix very well. Got to looking at that portion on the stud in the nut and hmmmm aluminum don’t rust! The stud was definitely rusted! I put a magnet on it - yes it sticks. The trim must be some kind of chrome plated low grade iron as it attracts the magnet but doesn’t really want to stick like on the tailgate. I suspect the rest of the nuts will snap off if I can even get to some of them!