A sample from the products for the F-3-1 include: Nut,hex 8mm, Screw,pan,5mm, Screw,pan,5x40, Cover,r Handle Le.
The most reasonably priced component used on the C50cmx-dx-sx-bx (c50-210) Japan F-3-1 is the Screw,pan,5mm.
Of all the components used in this assembly the Switch Assy., Dimmer & Horn (jdm) is the most expensive.