In this schematic the "Nut, Flang, 10mm" is used most often.
Of all the components that make up this Frame Body/oil Cooler the Nut,flange,6mm has the lowest price.
Parts such as the Frame Body/oil Cooler: Nut, Flang, 10mm, Holder Comp.,l.pi, Bolt,flg 10x291, Bolt,flange,6x22 are included in the Cbr500f 1987 (h) Austria Frame Body/oil Cooler parts fiche.