The lowest price component in this Rear Master Cylinder (kz1000-c2) parts-list fiche is the Pin-cotter,2.0x20.
A sample from the products for the Rear Master Cylinder (kz1000-c2) include: Hose, Rear Master, Rod,brake, Gasket, Bolt,oil,l=23.
In this schematic the "Washer,10.5x15x1.5" is used most often.