I need to fix some broken parts on my window. I have found all of them except this one. This is the one part I don't see in your catalog. It is attached to the window with a knob that sticks into the pivot shoe of a tilt window. The attached picture PART 1 GOOD.jpg shows the part that still works and has a number of 1528 on it. It's about 2 1/4" long and is metal. The broken part PART 2 BROKEN.jpg has the knob snapped off that fits into the pivot shoe. It has a part number of 1528-1. Do you have these?