Parts such as the Cam Chain/tensioner: Bolt,socket 6x25, Bolt,flange, Chain,cam, Collar,8mm are included in the Cb600f2 Hornet 2002 (2) European Direct Sales Bct Cam Chain/tensioner parts fiche.
The Bolt,flange 6x14 is the cheapest item from this partsfiche.
In this schematic the "Bolt,flange" is used most often.