On this parts fiche the Bolt,flange,nshf, is the most specified component.
The most reasonably priced component used on the Cbr1100xx Superblackbird 1998 (w) Northern Europe / Kph Right Crankcase Cover is the Bolt,flange 6x14.
A sample from the products for the Right Crankcase Cover include: Cap,oil Filler, Bolt,flange,nshf,, Pulse Gen Assy, Gasket,pulser Cov (nas).