Crower 86051-12 Features:

Complete 12-piece set of Crower Sure-Lock rocker nuts for 6-cylinder engine applications 3/8-24 in. stud thread with 0.530 in. shank diameter and 1.060 in. overall height Polylock design with integrated Allen head set screw for positive jam nut operation CNC machined from heat-treated chromoly steel with a black oxide finish

Sure-lock Rocker Nuts 3/8 3/8-24 In. Polylock, 12-Piece Set, Features:

• 12-piece set for 6-cylinder applications with 3/8-24 in. stud threads, matched for consistent rocker arm installation and valvetrain setup.
• Polylock design with integrated Allen head set screw for positive jam nut locking and precise valve lash adjustment under high-rpm operation.
• CNC-machined, heat-treated chromoly steel construction for strength, wear resistance, and dependable hold in performance valvetrain systems.
• Black oxide finish helps resist corrosion while maintaining smooth installation and long-term service in demanding racing and street-strip engines.
• 0.530 in. shank diameter and 1.060 in. overall height, sized for roller-tip and needle-bearing rocker arms requiring secure adjustment retention.