The most reasonably priced component used on the Ksf250-a11 1997 Europe Frame Fittings is the Bolt,flanged,8x20.
A sample from the products for the Frame Fittings include: Screw-pan-ws-cros, Bracket-engine,top, Nut,8mm, Nut,lock,10mm.
On this parts fiche the Nut,lock,10mm is the most specified component.