1980s bifold door hardware

A home owner from Wamego, KS says:
Hello. Having trouble finding this hardware to put it back on my bifold doors to put them back up. Tried Menards and Ace hardware and no luck. Thank you for any information you might be able to provide.
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Paul from SWISCO responded:

Hello, thank you for posting,

We also could not locate your closest door top guide. We did locate some possible replacements you might be able to incorporate in your door. Please review the following, 23-121 with 7/16" nylon cap, 23-122 with 3/8" nylon cap and 23-266 with a 7/16" nylon cap.

I apologize that we cannot provide direct matches. Please let us know if you have any additional questions. 

A home owner from Wamego, KS says:
Thank you for your time!
Bi-fold Door Repairs
Bi-fold Door Repairs
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