The Bolt,flange,6x35 is the lowest priced item on this E-9 schematic.
Parts such as the E-9: Bolt,flange,6x28, Bolt,flange,6x35, Cover,l.crankcase are included in the C50cmx-dx-sx-bx (c50-210) Japan E-9 parts fiche.
The Honda E-9 has three products enlisted in the schematic.