Genuine OEM Volkswagen Rivet, part number N91150901. This fastener is designed to provide a permanent, vibration-resistant join between two or more components. It is located in the sunroof or body assembly as shown at position 72 on the diagram. The rivet is engineered for specific material thickness and hole diameters to ensure a flush, secure fit. Genuine OEM rivets are essential for body and trim work, providing the correct expansion characteristics to prevent damage to surrounding panels and ensure long-term structural stability.