In this schematic the "Rubber,cushion" is used most often.
Parts such as the Meter: Bolt,recessed,6x2, Socket Comp., Screw,oval,5x20, Collar,19x6.2x14. are included in the Cbr600f Hurricane 1989 (k) France / Kph Yb Meter parts fiche.
Of all the components that make up this Meter the Screw,oval,5x20 has the lowest price.