As I recall the size is 200X200, but the screws were much larger than my previous mount so I had to buy new ones rather than buy an completely new mount. The screws are the M8 size, much larger than the old TV I replaced. I then had to put the plate into a vise and drill out the holes so the larger M8 screws would fit. Saved a lot on an install price. The TV is solidly attached. Wal-Mart has a connection kit for around $8.00 that includes dozens of screws for this purpose. Eight bucks compared to a completely new unit at $100 was a good investment. As far as spacers, the Wal-Mart kit had quite a few included, it’s up to you as to how many you think are needed. Plus it includes a bubble level to get it just right.
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