My operator screws differ from 39-264
Hello! Thanks for reaching out to us, and for the thorough description of your problem. I see exactly what you mean. I'm not sure I've ever encountered this style before, but I'm happy to look into it for you. Please give us a little more time to see if we can track this down and I'll get back to you ASAP.
Hey there, maybe I can be of some help. I think the issue here is that you could have an Andersen window manufactured before 1999. Check the corner of the glass in the window to see if there is a date etched into the glass.
If your window was made between 1995 to 1998, then you will need to use the 39-362 adapter plate to go with the 39-264 operator. That way it can mount to your window normally.