The Washer(6.5x20x1.2) is the lowest priced item on this Rear Fender (gsx-r600l3 E33) schematic.
This Rear Fender (gsx-r600l3 E33) diagram displays the required parts for the Gsxr600 2013 (l3) Usa (e03) Rear Fender (gsx-r600l3 E33).
In this schematic the "Bolt(6x17.8)" is used most often.