The Screw, Pan, 5x32 is the lowest priced item on this Intake Manifold schematic.
Some items from this specific schematic: O-ring,39.5x2.6, Manifold Comp,inl, Bolt,socket,6x22, Hose,inlet Manifo.
Of all the components used in this assembly the Manifold Comp,inl is the most expensive.