Parts for Leigh metal bifold closet doors

I'm afraid that I don't recognize these pins. The only Full-VU brand bifold door pin we carry is the 21-049, but this doesn't look like what I see in your photos.

In order to identify a replacement for your hardware, I'll need you to remove each pin in need of replacement and show us a picture of them individually, along with the caps and springs and other tertiary parts used in each case. I'll also need detailed dimensions, such as the diameter of the pin and the diameter of the caps, where applicable. From there, hopefully we can get you the hardware you need.