The Bolt,flange,6x28 is the cheapest item from this partsfiche.
A sample from the products for the Starting Motor include: Nut-washer 6mm, Bolt,flange,6x28, Holder Set,brush, O-ring,24.4x3.1.
This schematic depicts all components used in the Cbr600f Hurricane 1992 (n) European Direct Sales / Kph Starting Motor partslist.