The Screw,tapping4x12 is the most widely applied product in the GL1100 GOLDWING 1980 (A) USA HEADLIGHT GL1100 ( three times ).
The Headlight Gl1100 assembly is constructed from several parts from which the Case,headlight is the most expensive.
The component with the lowest price in the HEADLIGHT GL1100 schematic is the Screw,cross,3x8.