Header Stud Locknuts (Copper or Zinc Plated) | Legend Car
- Mechanical lock nut for exhaust stud
- Class 10 Steel
- For use on FZ09 & 1200/1250 exhaust stud
- Zinc Plated or Copper Plated:
- Copper-Plated - A copper plated finish makes these locking nuts suitable for extreme heat motorsport applications, such as exhaust manifolds. Temperature degree range: - 94 to 750 Fahrenheit. Copper will not seize or rust on the studs for future removal.