This HEADLAMP (GSX-R600L4 E28) assembly utilises six Screw(5x15)(s) - the highest specified component.
Some items from this specific schematic: Bulb(12v5w), Bulb(12v65w,h9), Bulb(12v55w/h7/px26d/philips), Cushion.
The lowest price component in this Headlamp (gsx-r600l4 E28) parts-list fiche is the Screw.