Bifold Door Guide Pin

The pin is approximately 4and a half inches long. It may or may not need replacement as the problem is that it does not engage the top track so there is a slight swing in and out when opening and closing the door. Any assistance that can be provided would be greatly appreciated.

I have a bi-fold closet door (wooden) and the door has become unhooked and I am struggling to get it back in. I've attached a picture of the pin and the little door guide (not sure the name of this piece). It seems like this door is older, so I can't easily find these parts in hardware stores. I ... (cont.)

I am having trouble locating right replacement pins for these doors can you help with the right parts.

We need to purchase complete mounting hardware minus top and bottom track for 10 doors. Doors were manufactured around 1970. Thank you Jim