High-Strength Alloy Steel Bolt Kit

The SPELAB Head Stud Kit provides a robust solution for enhancing the reliability and performance of your diesel engine, particularly in high-stress conditions. Constructed from premium 42CrMo high-strength alloy steel, the head studs boast an impressive tensile strength exceeding 220,000 psi and a hardness of Rockwell C 39-44. This material composition ensures they can endure the high boost pressures and elevated temperatures characteristic of performance diesel applications. The black oxide finish not only provides a sleek aesthetic but also offers essential protection against rust and corrosion, extending the lifespan of the components. This comprehensive kit includes all necessary components for installation: 20 main bolts with dual M14*2 and 9/16-18 (Imperial) threads (223mm length), 20 flanged nuts, 20 washers, an M14*2 tap for thread chasing, an 11/16 socket, a 3/16 hex key, and 100ml of specialized paste grease. The precise engineering ensures a perfect fit, optimal torque, and reliable performance under heavy-duty conditions. The SPELAB Head Stud Kit is specifically designed for the 2003-2007 Ford F250, F350, and F450 models equipped with the 6.0L PowerStroke V8 Diesel engine. Proper installation is critical; the manufacturer advises cleaning and chasing all block threads, verifying hole depths, and applying supplied assembly lubricant only where specified, particularly on nut and washer contact surfaces.