This SPEEDOMETER-TACHOMETER assembly utilises four Screw Tapp 4x35(s) - the highest specified component.
The most reasonably priced component used on the Civic Htbk/wagon 1980 (a) 3dr1500 (ka,kh,kl) Speedometer-tachometer is the Screw Tapp 4x35.
Some items from this specific schematic: Screw Wash 5x16, Meter, Combination, Meter, Combination, Screw Tapp 4x35.