We had to replace mirrors on our bi-fold doors after Hurricane Sandy, and just did it recently. The mirror shop lost the bifold door plunger pin from the top of the door. We have been unable to find a replacement in the hardware stores. We need the spring end to be 1/4 '', same as the straight end. The name on the hardware is "Paniflex", I hope that is helpful. I have tried numerous times to download pictures but to no avail.
I hope you can help.
Thank you,
Pete and Kathy