On this parts fiche the Screw,tapping,4x20 is the most specified component.
Parts such as the Speedometer Assembly -clock: Bolt Flange 6x10, Screw,tapping,4x20, Bolt,flange,6x10, Meter, Combination are included in the Civic 1985 (f) 3dr1300 (ka,kh,kl) Speedometer Assembly -clock parts fiche.
The component with the lowest price in the SPEEDOMETER ASSEMBLY -CLOCK schematic is the Screw,tapping,4x20.