Parts such as the Step: Pin C,pillion, Holder R,p.step, Pin,cotter 2.0x15, Holder R,p.step are included in the Cb1300 2008 (8) Australia Step parts fiche.
On this parts fiche the Bolt,socket 8x34 is the most specified component.
The Step assembly is constructed from several parts from which the Holder,r Step is the most expensive.