On this parts fiche the Screw is the most specified component.
A sample from the products for the 008 Timing System include: Washer 15.2x24x1, Woodruff Key 4x5, Tensioner, Timing Belt Movable, Screw Tcei M6x16.
The Screw Tcei M6x16 is the cheapest item from this partsfiche.