The drive flange nut M18 is a crucial fastening component for Citroën 11CV and 15CV models. This nut ensures a solid connection between the drive flange and other vehicle components, minimizing vibrations and enhancing the driving experience. It's made from high-quality material, ensuring durability and long-lasting performance, even under tough conditions. Specifically designed for classic Citroëns, this nut is essential for optimal operation and safety. Regular inspection and replacement of this nut can contribute to the longevity of your classic Citroën.