Genuine OEM Volkswagen Hex Nut with Washer, part number N91143101. This fastener features an integrated washer to provide a larger bearing surface and prevent loosening over time. It is used to secure various components such as trim strips and handles within the door assembly. The combination design simplifies installation and ensures a consistent clamping force. Genuine OEM nuts are manufactured with precise threading and specialized coatings to resist corrosion and ensure a long service life.