Parts such as the 028a Rear Fork: Washer, Axle, Rear Swing Arm, Spindle, Taper, Screw are included in the Sbk999 2003 Usa (superbike 999) 9151-1641a 028a Rear Fork parts fiche.
This 028A REAR FORK assembly utilises four Screw Tbei M6x14(s) - the highest specified component.
The component with the lowest price in the 028A REAR FORK schematic is the Screw Tbei M6x10.