need hardware piece

The part you're showing us almost resembles a tilt corner key. However, with your part still installed, we can't say for sure what it is you're trying to replace. You will need to completely remove the part from the window and upload more photos for us to see. We will also need for you to provide measurements of the part. Thank you.

It needs to be completely removed from the window and shown to us for us to review. We also need to know its measurements to help us narrow down a potential replacement. 

These photos are perfect! Have a look at our 95-182 pivot. This looks to be the closest match we have. Review our measurements and see if they are compatible with yours.