Parts such as the Swingarm: Bolt-flanged,10x55, Pin-cotter,3.2x30, Arm-comp-swing, Nut,castle,14mm are included in the Kaf300-b2 Mule500 1989 Europe Swingarm parts fiche.
This schematic depicts all components used in the Kaf300-b2 Mule500 1989 Europe Swingarm partslist.
With eight applications this Bolt-flanged,10x16 is the most specified part.