The Crankcase Cover- Water Pump (model K1/k2) assembly is constructed from several parts from which the Cover,clutch is the most expensive.
Some items from this specific schematic: Bolt(6x30), Cover,clutch,outer, Bolt,g/s Switc, Gasket(6.2x11x1).2 (nas).
In this schematic the "Screw" is used most often.