The Screw Tcei M6x16 is the lowest priced item on this 014a Cylinder Head Covers schematic.
Some items from this specific schematic: Screw Tcei M6x30, Washer 6.4x12.5x1.6, Screw Tcei M6x16, Fairlead.
With eighteen applications this Screw Tcei M6x16 is the most specified part.