The lowest price component in this Cam Shaft - Valve parts-list fiche is the Bolt(6x12.5).
A sample from the products for the Cam Shaft - Valve include: Shim,tappet(t:2.30), Pin,sprocket, Washer(22x30x1.1), Washer(22x30x1.3).
On this parts fiche the Cotter Valve is the most specified component.