On this parts fiche the Nut,hd/lt Setting is the most specified component.
Some items from this specific schematic: Fnd,fr*nh-138*, Bolt, Flange,6x12, Stay,fr.fe*r-134*, Bolt,flange,6x10.
The component with the lowest price in the F-6 schematic is the Bolt,flange,6x10.