Of all the components that make up this Rear Fender the Nut,flange,6mm has the lowest price.
On this parts fiche the Bolt,flange 6mm is the most specified component.
A sample from the products for the Rear Fender include: Grommet,rr.fender, Band,rr.fender C, Case,drive Chain, Bolt, Flange,6x12.