The X-Y lens adjustment screws are located on the outer diameter of the FiberPort body at the 9 o'clock and the 12 o'clock positions (shown in the photos tothe right). The three plunger screws provide counterforce for the tilt plate. The three socket head cap screws provide the Z/q/j adjustments for the FiberPort.The three socket head cap screw and the X-Y screws are the only screws that are normally used in the alignment of the FiberPort, but the plunger screws canbe used to adjust the tension on the tilt plate if needed. Also, the three flat head screws on the face of the FiberPort hold the clamp plate and bulkhead inplace. By loosening these screws, the bulkhead can be rotated through a full 360° and secured at any angle for PM applications.