The Screw,cross,5x12 is the lowest priced item on this Wire Harness (vt1100c2) schematic.
Some items from this specific schematic: Plate Coupler Hol, Cap Assy,high/t 1, Cap Assy,high/t 4, Rectifier,silicon.
Of all the components used in this assembly the Harness Wire is the most expensive.