The formerly black lug bolts on my E36 M3 have become flaky and rusty. I realize these are not the most expensive items on the car! What do the rest of you do when this happens? Replace them? Is there a way to protect them so they don't deteriorate? Thanks for your feedback. Chad '95 M3 shiny (non-Zymoled!) black/black w/ rusty lug bolts :-(