Product is high quality and good price. I’m using this part to adapt from the back of a AP Quad TCC. As I understand it’s the same threads, even though they label it a different PN. Works as expected.
I picked up one of these for my 10". The fit and finish is exceptional and though three set screws may seem like overkill, it also makes for great centering and superior grip on your accessories, which tend towards rather expensive! This is a very solid, professional grade piece of kit and I highly recommend it. Great price for such nice work, too.