The lowest price component in this Handle Lever/switch/cable (1) parts-list fiche is the Bolt-washer,6x20.
With two applications this Bolt.sh-ct,6x18 is the most specified part.
Some items from this specific schematic: Sw.unit,winker, Sw.unit,horn, Bolt Flang 6x12, Clamper D Rr Brk.