Need parts

Contractor from Bay City, Michigan USA
Here's a challenge. I don't know the window manufacturer or what these parts are classed. The "set screw" came out of the "thing" and I can't attach it to the window. I can't move the window with the crank. What do I need to fix this. Help please.
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Lauren
Lauren from SWISCO
SWISCO
Expert

Hello, thank you for posting,

To further review, we will need to see additional pictures where we can see a bird's eye view of the operator arm and base. From there we can get a clearer idea of which operator will work for your window. Thank you! 

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