In this schematic the "Washer Oil Bolt" is used most often.
Parts such as the F-4: Cap Master Cylinder, Washer Oil Bolt, Circlip, Bolt,flange,6x22 are included in the Sgx50 Via 1997 (v) Japan (jdm) Af43-000 F-4 parts fiche.
The component with the lowest price in the F-4 schematic is the Screw Flat 4x12.