Part No. 08-331500 Replacement chain tensioner hardware for most stock applications of street and off-road motorcycles. Metric class (grade) 8.8 for outstanding wear and durability. Durable zinc plated finish for ultimate corrosion protection. Kit contains the following class 8.8 hardware: 2 each - M8x50 bolts with 10mm hex head2 each - M8 flange nuts with 12mm hex head.