The Screw, Panhead (4u5) is the lowest priced item on this C.d.i. Magneto schematic.
Some items from this specific schematic: Screw, Pan Head (3m5), Base Assy, Clamp, Screw, Panhead (4u5).
The C.d.i. Magneto is made up of components including this Rotor Assy which is the most expensive.