Seriously folks...We have plenty of salt on the roads in the winter, and the nuts for my Miche Hubs I had been riding for the last few years don't have a spec of rust on them. They are $4 per nut (Canadian Dollars). I never thought much about the quality of them, but after reading all of these posts on your IRO nuts, I am thinking that my nuts are a little nicer than yours. Perhaps it is because I pay attention to my nuts regularly and make sure they are always clean and shiny after each ride...or maybe its genetics.