I have bought many of these ballscrews in the past but I didn’t care about their rotation since they all were for CNC application where you can change the rotation thru a software.

But I want to buy some for a manual lathe project I’m working on now. I have one left over from my CNC projects but when I turn it CW the ballscrew moves towards me which is the wrong way.

Can you order these screws in CW or CCW rotation and how do you specify it. I don’t know if the Chinese know the difference of CW / CCW and I want to make sure I will get what I order.