The component with the lowest price in the F-7 schematic is the Bolt,flange,6x20.
The F-7 assembly is constructed from several parts from which the Fender Front Nh196 is the most expensive.
A sample from the products for the F-7 include: Bolt,flange,6x20, Fender Front Nh196, Collar,adjust, Bridge Fr. Fender.