This kit includes six class 10.9 silver zinc plated steel sprocket bolts with factory style metal-locking or "Fuji" nuts. Each sprocket bolt has medium strength threadlock patches applied for a double-lock. Threadlock liquifies and anaerobically seals when the bolt is tightened. This kit also includes an 8mm tool insert for socket wrenches. Also available in black and yellow zinc finishes. Fits all Japanese and most European dirt bikes. Our hardware meets or exceeds OEM specs. Proudly produced in the USA.