This is the Pack of Ten Ultimate Racing Premium Self-Locking Nuts. Crafted from high-strength 10.9-grade steel, recognized as the optimal standard in the RC world, these nuts ensure exceptional durability and reliability.The black finish, characteristic of screws and nuts from leading RC manufacturers, not only adds a stylish touch but also reflects the superior quality of Ultimate Racing products. These Premium nuts are a significant upgrade from the standard ones that come with your RC car, delivering substantial improvements in performance and strength.Say goodbye to concerns about damaging heads or threads: Ultimate Racing Premium Screws and Nuts provide a robust and reliable solution. Elevate your RC experience with a worthwhile investment. Discover the best value for your RC car with these outstanding Premium screws and nuts from Ultimate Racing.