7713-20-Z Head bolt kit

The early Knucklehead is one of the most iconic engines in motorcycling history, and it deserves the best hardware available. This Colony head bolt kit is designed for 1936 to 1939 Knucklehead models, providing the correct OEM-style fasteners for a proper restoration or repair. These bolts are finished in zinc and come complete with the necessary washers to ensure a secure and even distribution of pressure across the heads. Maintaining a Knucklehead requires precision, and these Colony bolts are built to the exacting standards needed for these early OHV Big Twins. Sold as a kit, this set is an essential part of any top-end rebuild for these legendary pre-war machines.