With four applications this Bulb(12v3w,t6.5) is the most specified part.
The Screw is the lowest priced item on this Speedometer (model K5/k6/k7/k8 E28) schematic.
The Speedometer (model K5/k6/k7/k8 E28) assembly is constructed from several parts from which the Speedometer(kilo) is the most expensive.