Engineered for high-performance applications, KPMI cylinder studs are constructed from premium grade 8740 material featuring a fine grain structure and a 180,000 psi yield strength. The manufacturing process includes heat treating followed by thread rolling, a sequence designed to retain maximum compressive stresses for superior strength and extended fatigue life. Additionally, the case end threads are machined with a slight interference fit to ensure consistent thread contact even under high-temperature operating conditions.
Precision is maintained throughout the production cycle, with studs undergoing centerless grinding to guarantee optimal concentricity. Each component is finished with a premium black oxide treatment, providing a professional appearance while completing the high-performance specification of this hard parts kit.