Parts such as the Taillight: Brkt.comp License, Stay,tail Lightr/, Screw,tap 5x12mm, Bulb (12v5w) are included in the Cb600f3 Hornet 2009 (9) Spain / St Taillight parts fiche.
The most reasonably priced component used on the Cb600f3 Hornet 2009 (9) Spain / St Taillight is the Screw-washer 4x16.
In this schematic the "Collar" is used most often.