I ordered 2xMP-M10S studded male RH thread, the quality is excellent, but what let it down for me was the length of the stud, just about 20mm, it's impossible to predict the dimensions from a photo, I was expecting 30mm as a minimum. If only your web page given more detail like thread lengths, there was no way I would have made the purchase. However I then purchased a couple of 10mm without the stud, they worked out ok on my application. Maybe you would like send me a prepaid envelope and I will return the 2MP-M10S, then you can provide a refund? thanks, regards, Steve.