Parts such as the Front Wheel/hub ('80 A1): Bearing-ball,#6302zc3, Cover,dust,lh, Washer, Plain, Circlip,42mm are included in the Kz440a2 Ltd 1981 Usa Canada Front Wheel/hub ('80 A1) parts fiche.
In this schematic the "Bolt,8x28" is used most often.
The component with the lowest price in the FRONT WHEEL/HUB ('80 A1) schematic is the Washer-plain,5mm.