One of the included nuts broke inside the spacer when I screwed it onto the hub! I panicked because it wouldn't come off either and I knew it meant it had to be cut off and the studs replaced! What a disaster! Luckily I was able to hammer a smaller head onto it and carefully remove it. Wow! disaster averted! But the bottom line is that you get what you pay for and the overall quality of Chinese nuts, bolts and screws is terrible and they don't get any better. Not what you want to hear when discussing the possibility of losing a wheel and injuring yourself or others!