Genuine OEM Volkswagen Screw, part number N91280901. This internal serration flange screw is designed for secure, vibration-resistant connections within the battery and charging system. It is located in position 3 on the diagram. The screw has dimensions of 0.08m in length, 0.02m in width, and 0.02m in height. Genuine OEM screws provide the correct thread pitch and material strength for critical electrical connections.