Genuine OEM Volkswagen Hexagon Head Bolt, part number N90843202. This bolt is designed with a standard hexagonal head, intended to be tightened with a wrench or socket. It is located at position 3 in the diagram, used for mounting the air conditioning compressor. The precise manufacturing ensures correct torque and load bearing for A/C system integrity. Genuine OEM bolts provide exact tolerances and material strength crucial for reliable component mounting.