The forty-five Zx1000a2 Ninja 1000r 1987 Usa California Canada Front Fork (f/no. Ga000321-)(f/n component parts are all listed in this schematic.
The lowest price component in this Front Fork (f/no. Ga000321-)(f/n parts-list fiche is the Nut,flanged,8mm.
With four applications this Bolt,flanged,8x40 is the most specified part.