Had a little problem with a IDS X10 Mini foam mount, Laurie from Aloft got it handled right away, Thanks ! I've had some time to " tinker " with these mounts and here's what I found. 2mm Button Head Socket Screws ( Micro Fastener ) fit the holes in these mounts perfectly. I used the 2 x 8mm for the bearing holder ( comes flush with bottom of the mount ) the stock screw is a little short. For the servo itself I used the 2 x 10 mm and cut off about 3m, if you don't want to cut, you can just use the 2 x 6 mm. No need to do anything to the holes just put a little candle wax on the threads. If you've ever made one of the servo holes too big you can use a 2.5 mm button head . I use a touch of thin CA where the hole is. then run a 2.5 mm tap in and it's fixed