I just purchased ball screws and nuts from charter oak. I am trying to figure out where they are from as I need to figure out the ball nut dimensions for creating a mounting block for. would anyone happen to have that information? I found something online that says Rockford, but when I go to their website neither the pictures or numbers add up to the actual dimensions of the screw and nut. I also tried Nook ind, the images of the nuts look like the right ones, but the dimensions don't add up either. the nuts look to be a single preloaded nut around 2 - 2-1/2" long. when I check the diameter it measures 1.370