On this parts fiche the Washer, Plate is the most specified component.
Parts such as the Front Master Cylinder: Hose, Brake 1, Screw, Pan Head, Bolt, Lever, Washer, Plate are included in the Bt1100 2002 5jn1 Switzerland 1a5jn-332e2 Front Master Cylinder parts fiche.
The Bolt is the lowest priced item on this Front Master Cylinder schematic.