These nuts are literally useless I wouldn't trust them with the life of anyone you care about. Whatever they're made of, it's complete garbage. I shot 2 of these on a hairpin. and it did nothing for the hairpin. Checked every bolt and they were fine. I sent back the original nut and everything was fine. 1 stripped nut was interesting but after the 2nd I would never let my girlfriend ride her new wheels again. Also, they are just painted and chip easily. I could just put Lauquer thinner on my original nuts and paint them myself if I knew how much rubbish they are. end of the rant