On this parts fiche the Nut,hex.,10mm is the most specified component.
Check out any of the sixteen Swingarm components enlisted.
Parts such as the Swingarm: Swingarm Assy,rea, Circlip, Oil Seal,27x43x7, Bolt L,swingarm P are included in the Gl1500cd Valkyrie 2003 (3) California Swingarm parts fiche.