Weathershield window knife point locking cam

Thanks for contacting SWISCO. I'm afraid I need a little more information to be able to help. Could you provide a picture of the pivot shoe removed from the window, as well as the width and thickness? This will help identify what replacement you might need. If you need help removing the pivot shoe, check out this video below.

Thank you. Would it be possible to see an undamaged version of this shoe? I'm afraid a bit too much of it has broken off and I cannot quite make out what it is. Thank you!

I am afraid none of that information will be helpful to us. We will still need to see photos of the part undamaged please. 

That doesn't tell us much, I'm afraid. In order to determine what you need, we need a photo of an undamaged version of that shoe.