Q In my kitchen where the backsplash meets the countertop, there is a narrow strip of (what looks like) aluminum molding. The nails used to hold the aluminum trim have rusted, and the rust has spread.

QUESTION: I’ve noticed that many of the fences in my neighborhood have streaks of rust running down the boards from the nails. In building a new fence, I’m thinking of using screws instead of nails to ...