Genuine OEM Volkswagen Socket Head Collared Bolt, part number N10671801. This bolt features a hexagonal socket head and an integrated collar, which provides a larger bearing surface for more secure fastening. It is located at position 19 in the diagram, likely used in the accessory drive system. The precise design ensures optimal performance and reliability. Genuine OEM collared bolts are important for distributing load evenly and preventing damage to mating surfaces.