Bolt Motorcycle Hardware is located on the beautiful Central Coast of California, where they design, assemble, package and ship their hardware kits. Engine Fastener Kits come with modern dimpled flange bolts. With a bright zinc finish, these fasteners last long and give a clean, updated look to any engine. Two-Stroke Engine Fastener kits have all the external fasteners from top to bottom-end including hardware for: Heads, Reeds, Cylinder, Crankcase, Case Saver, Water Pump, Left Case Cover, Ignition Cover, Inner & Outer Clutch Covers, Power Valve Covers.