I have some airtronic 94102z servo. What the screw size for the servo horn so I can connect it to stuff and also the screw size for the center of the servo? I wasn’t sure if all servo were pretty much the same except for the micro of course. I did manage to find some for the center which are 4-40x1. They seem to be ok so I’m sure if might work, but I want to find out from the experts out there. Also where would be the best place to get screws for servo horns locally. Thanks for your help.