Genuine OEM Volkswagen Double Collared Stud, part number N90984401. This stud is used to mount the air conditioning compressor, featuring a double collar for secure fastening. It is located at position 4 in the diagram. The part has dimensions of 0.11m x 0.02m x 0.02m and weighs 0.041kg. Genuine OEM double collared studs are manufactured to exact specifications, ensuring proper alignment and a secure connection for reliable A/C system performance.