AMAZON NEVER RESPONDED TO MY COMPLAINT ABOUT THIS! Very annoying that not all of the 20 nuts have the correct M12x1.25 thread that I bought! I installed these grommets on my car and found that one of them has an M12x1.5 thread so I have a nut that can't be used on my car! I love how they look on my custom bikes and I wasn't happy I didn't get what I paid for! The quality control at this company is probably not that good! How do I get the right replacement for a wrong mother?!?