I have what I believe to be a Pella product that I found when I searched window crank handle replacement.
But the picture that looks like my part, takes me to your site with another picture that is not the same as my part. I
Tom from SWISCO responded:
July 14, 2016
Thanks for posting. It looks like some of your post got cut off so I'm not sure exactly what it is you need. That said, you could consider our 39-404 and 39-403. These appear to match the hardware in your picture.