These nuts rusted after the first ride on a salty road, and since then their condition has deteriorated. They have only been removed once so not too worn to be rusty. Also the strength of the steel seems questionable - two of these about to cross the threads and didn't show enough resistance to avoid damage on the first two turns, and doing this by hand with my fingers, I haven't even broken the keys yet. At least they're cheap, but I'll definitely get a better set elsewhere.