The most reasonably priced component used on the Vz800z Boulevard M50 2009 (k9) Usa California (e03 E33) Front Cylinder Head (model K5/k6/k7/k8) is the Washer(8.5x24x1.6).
The most expensive part in this assembly is the Head Assy,cylinder Fr.
In this schematic the "Bolt" is used most often.