The most reasonably priced component used on the Gsf1200z Bandit 2003 (k3) Usa (e03) Second Air is the Clip.
Parts such as the Second Air: Bolt,oil Fille, Clip, Clip, Pipe,2nd Air No.4 are included in the Gsf1200z Bandit 2003 (k3) Usa (e03) Second Air parts fiche.
On this parts fiche the Nut is the most specified component.