Genuine OEM Volkswagen Hexagon Head Bolt, part number N10545402. This threaded fastener features a hexagonal head, used to join or secure components within the battery and charging system assembly, specifically for mounting the alternator. The bolt measures 0.03m in length, 0.015m in width, and 0.015m in height. Genuine OEM bolts are manufactured to precise tolerances, ensuring the secure and reliable mounting of critical charging system components like the alternator.