This CORNER RING LAMP (SI) assembly utilises six Screw 5x12(s) - the highest specified component.
The lowest price component in this Corner Ring Lamp (si) parts-list fiche is the Screw 5x12.
Some items from this specific schematic: Bulb Head Light, Rim,l.cornering L, Lamp Unit,l.corne, Lamp Assy.,r.corn.