The most reasonably priced component used on the Cn250 Fusion 1987 (h) Japan Mf02-110 E-7 is the Washer,6mm.
The thirty Cn250 Fusion 1987 (h) Japan Mf02-110 E-7 component parts are all listed in this schematic.
On this parts fiche the Bolt,flange,6x40 is the most specified component.