7018-16 Cyl base nut kit

For a classic custom look on your Ironhead or Flathead, this Colony cylinder base nut kit provides the perfect finishing touch. The kit features acorn-style nuts finished in brilliant chrome, offering a much cleaner and more polished appearance than standard hex hardware. These nuts are designed to fit 1957 to 1985 XL Sportster models and 1929 to 1973 45-inch Side Valve models. Using acorn nuts at the cylinder base is a traditional custom touch that hides the stud threads and adds a professional aesthetic to the engine's top end. Colony’s high-quality plating ensures these nuts will maintain their shine even under high engine temperatures, making them a favorite for both restorers and custom builders.