Genuine OEM Volkswagen Hexagon Socket Head Bolt, part number N90704007. This bolt is designed with a hexagonal socket head and a shoulder for secure fastening in demanding applications. It is located at position 5 in the engine assembly, likely securing the water pump housing. The bolt has a length of 0.062 meters and a width and height of 0.017 meters. Genuine OEM bolts ensure the correct material strength and thread pitch for safe and reliable assembly, preventing component failure.