In this schematic the "Bolt, Washer Based(1aa)" is used most often.
The lowest price component in this Camshaft & Chain parts-list fiche is the Pin, Dowel(3xw).
Some items from this specific schematic: Bolt, Washer Based(1aa), Pin, Dowel(3xw), Gasket (nas), Gasket, Tensioner Case (nas).