Parts such as the Front Fender: Rubber A, Stopper, Bolt,flange,6x12, Washer,13x24, Seal, Fr. Fender are included in the Trx125 Fourtrax 125 1986 (g) Usa Front Fender parts fiche.
The Nut,flange,6mm is the lowest priced item on this Front Fender schematic.
On this parts fiche the Nut,special,6x7 is the most specified component.