The upper control arm ball joint pinch bolt on the popular Audi A4 and A5 models is frequently corroded and must be cut out when removing or replacing the upper arms. This bolt and nut replacement kit has a 720 hour saltspray certified coating to minimize future corrosion. Order one kit per side. Replace Audi OE bolt WHT006542 and nut N10286110 with this kit. California Residents WARNING
