later I didn't want to use aluminum nuts but I wanted some style with strength. I've had them since December and haven't had any problems with them. I turned my fatigue several times and there was no rust. Of course I keep my car clean and take care of the tires and rims, which means cleaning, then cleaning and drying the hatches. I don't use a punch gun on them. This is probably the main reason why they can start to rust as others have said. I also use them on my jeep.