The Bolt, Flange is the cheapest item from this partsfiche.
This part-list fiche shows all the components that make up the Yz125 2019 B0v2 Europe 1ub0v-300e1 Rear Brake Caliper .
Some items from this specific schematic: Insulator, Heat, Boot 2, Bolt, Flange, Disk, Rear Brake 2.