Parts such as the Brake Pedal: Bolt-hex Head,10x32, Nut,10mm, Lever-brake,f.black, Washer,step,rr are included in the Ar80c7 1989 United Kingdom Brake Pedal parts fiche.
In this schematic the "Pin-cotter,2.0x15" is used most often.
The Nut-hex,6mm,black is the cheapest item from this partsfiche.