Hello!
We'd be happy to help but we'll need a bit more information to determine a match. Specifically, we'll need to know the diameter of the pin shaft and the diameter of the nylon cap, where it fits into the track.
Thank you!
Hey, Gord. I wasn't able to find a pin that matches your specifications and design. I can tell you that the bracket in your track appears to match our 21-200; this has a 3/8" hole, which matches the cap dimensions you gave, but the only 5/16" pins we sell with that size cap are our 21-007 and 21-001, both of which are very, very different from what you show here.
Ultimately, though, these may be our best options. Metal bifold door parts like this are getting harder to come by these days so there is a good chance that yours simply aren't made anymore.
I am very sorry that we can't be of more help.
