This REPAIR KIT 2 assembly utilises four Bolt, With Washer(6b0)(s) - the highest specified component.
Some items from this specific schematic: Oil Seal, O-ring (6e5), Water Seal 1, Gasket, Exhaust Manifold (nas).
The Repair Kit 2 is made up of components including this Water Pump Repair Kit which is the most expensive.