The thirteen Mtx125rw 1987 (h) England Rear Brake Panel component parts are all listed in this schematic.
The Nut,flange,6mm is the cheapest item from this partsfiche.
A sample from the products for the Rear Brake Panel include: Bolt,flange, 6x32, Panel Com*nh-105*, Adjuster,chain R., Nut,flange,6mm.