Yeah Racing 4mm Aluminum Serrated Lock Nut (10) (Light Blue)

Bought on a whim because I wanted to change the look of my TT-02. Glad they work for what I wanted. The serrations on the back will hold the wheels on better than the stock “flat back” nuts but won’t mar the wheels like the nuts that come with almost all MST wheels. Side note: if you are buying these and looking to mount them on a set of MST wheels with raised simulated lugnuts, these WILL NOT work! The MST wheel nuts are best suited for MST wheels with raises simulated nuts. They will work on other styles of MST wheels like the TE among a few others though. In closing, if you’re looking to enhance the look of your 1/10 touring or drift car, these will definitely do just that and look killer doing it!