5/16" Polylock Rocker Arm Nut Set Made from high-quality cast aluminum

Made from high-quality cast aluminum

They're machined from billet aluminum for lasting durability and good looks

plain design that adds a unique look to your engine

All rockers feature large needle bearings and roller tips

5/16" Polylock Rocker Arm Nut Set Made from high-quality cast aluminumSpeedmaster rocker arm adjusting nuts are high quality polylocks designed for full roller rocker arms. Made from heat treated, premium grade 4140 chromoly steel, these adjusters provide 190,000 psi tensile strength for the utmost in reliability. Precision CNC machined threads to ensure optimum seat pressure, flush machined set screws for proper contact on the studs, and, best of all, they don't require any special tools for installation. They're