I have a stand for a 50LN5750 that was missing screws from the base to the upper support. The manual describes them as P4 x 25mm. They are actually pan head Phillips self tapping screws (4mm diameter). LG part number appears to be FAB31740201 and a part site wanted a whopping $5 each with $10 shipping. Found some good suspects on Ebay shipped from China (search M4x25mm self tapping) but ended up finding some locally from a LG dealer. In a pinch, the closest imperial screw is a #10 – 1″ which is 4.8mm diameter and the thread pitch is a little wider. The screws to mount the stand to the TV are standard metric machine screws and the part numbers can usually be found in the user manual.