The Elring Porsche Turbocharger Stud Lock Nut - 456430 is a high-quality, durable nut designed specifically for use in Porsche turbochargers. It is used to secure the turbocharger studs in place, preventing them from loosening or falling out during operation. This nut is made from strong and reliable materials to ensure a secure fit and long-lasting performance. It is an essential component for maintaining the proper functioning of your Porsche turbocharger and ensuring a smooth and powerful driving experience.