One of mine was rusted and the head snapped off when I took panels off to paint last year. I carefully drilled and tapped for a new bolt. Also, there are little sleeves/spacers that those bolts go through that seems to trap moisture and lead to rust. I bought new ones when I put everything back together, put anti seize on the bolts, and coated everything with Rust Fighter to be sure I didn't snap another. Unless you live in Southern California, you'll always be fighting a war with corrosion. :frusty: