The Civic 5d 1300 1980 Hmt E-15 Water Pump consists of twenty-four pieces with the Pump Comp.,water being the most expensive.
Some items from this specific schematic: Thermostat Unit, Hose,bypass Out, Thermostat Unit, Clip D12.5 Tube.
On this parts fiche the Bolt Flange 6x35 is the most specified component.