Genuine OEM Volkswagen Hexagon Flange Screw, part number N91150602. This screw features a hexagonal head with an integrated flange, designed to provide a wide bearing surface for secure fastening in critical automotive applications. It is located in the battery and electrical assembly as shown at position 2 on the diagram. The integrated flange eliminates the need for a separate washer, ensuring consistent clamping force. Genuine OEM fasteners are manufactured to specific metallurgical standards to prevent corrosion and ensure structural integrity.