See photos above. Need replacement bolt

A home owner from Brookhaven pa says:
The top corner bolt securing door to track is gone. Can you advise what replacement part is needed. Benchmark sticker of brand above
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Tom from SWISCO responded:

Hello! Looks like you have a a Benchmark brand door. You say that you specifically need the bolt that secures the door to the track, but I'm not sure what that might be. Look at our 21-044 , 21-002 , and 21-042 bifold door pins and see if any of these would match your missing pin.

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