With a quantity of four pieces, the Screw,tap.,4x12 is the most used part in the F-1 diagram.
Some items from this specific schematic: Screw,tap.,4x12, Cover Comp., Bulb,headlight, Bolt,flange,6x20.
The Cn250 Fusion 1988 (l) Japan Mf02-120 F-1 consists of eight pieces with the Light Assy,head being the most expensive.