Parts such as the Rear Combination Lamp (tc1000): 01500-06207, Bulb(6v32/3cp,stanley), Lens,rear Combination Lamp, Washer (6.5x20x1.2) are included in the Tc100 1974 (l) Usa (e03) Rear Combination Lamp (tc1000) parts fiche.
The Screw is the cheapest item from this partsfiche.
The seventeen Tc100 1974 (l) Usa (e03) Rear Combination Lamp (tc1000) component parts are all listed in this schematic.