Both of my magnetos had problems with the trident threading. It stops about half way. I made the plunge and tightened it flush. While scary, I don't believe it hurt anything. I had to do this to version 1 and 2 as I own both magnetos.
Be warned it most likely will not thread right. But my threads seem perfectly fine. And youll only have to do it once.
Didn't notice you said clone. I'm not sure if they have the same threading but I have a real trident.