Header Stud Locknuts (Copper or Zinc Plated) | Legend Car

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Mechanical lock nut for exhaust stud Class 10 Steel For use on FZ09 / MT09 & 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. Show more