Top pin for bi-fold door

A landlord from Adrian, MI 49221 says:
I am looking for a top pin for a metal bi-fold door. I included a picture of the bottom pin as well as whats left of the top pin. The top pin should have a spring on it similar to the spring on 21-091.
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Bob from SWISCO responded:

Can you tell the diameter of the pin? Is there also any brand or manufacturer info on the door? From there I should be able match what you need.

A landlord from Adrian, MI 49221 says:
The main part of the pin is 3/8", the ends are 1/4", length is 4". I did not see any markings ( Make, model, etc.) on the doors so I attached a picture of them.
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Paul from SWISCO responded:

Greetings. You might have an old original Peachtree, Float-a-way bi-fold door. We have carry the new style pins. See our 21-028, 21-029, or 21-030. The nylon housings will fit into a 1/2" hole in the doors and also the tips of 21-029 & 21-030 are 9/32". Please compare to and see if you think these pins will fit your door and track.

21-028 : Bifold Door Guide Pin, Peachtree
Bifold Door Guide Pin, Peachtree
21-028
$5.05
VIEW >
21-029 : Bifold Door Top Pivot, Peachtree
Bifold Door Top Pivot, Peachtree
21-029
$4.90
VIEW >
21-030 : Bifold Door Bottom Pivot, Peachtree
Bifold Door Bottom Pivot, Peachtree
21-030
$5.60
VIEW >
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