On this parts fiche the Bolt,flange,8x40 is the most specified component.
Some items from this specific schematic: Dust Seal,strg., Bolt,flange,8x40, Dust Seal, Stem Comp.,steeri.
The lowest price component in this Steering Stem (cr125rl/rm/rn/rp/rr) parts-list fiche is the Bolt Flang 6x16.