The lowest price component in this Magneto parts-list fiche is the Screw.
On this parts fiche the Washer,lock 4m is the most specified component.
Parts such as the Magneto: Washer 4mm, Screw(4x10), Screw, Coil, Lighting are included in the Gp100 1981 (x) United Kingdom (e02) Magneto parts fiche.