Closet spring pin

A home owner from Texas says:
Hi, I have 2 closet doors with 60 inch openings. The inside spring pin for the top doesn't move,it should be "springy" right? I am guessing that I would need 4 tracks, 2 top, & two bottoms? and four corner brackets and 4 springy pivots. The stationary pivot guides seem to be in good shape, and the adjustable pivot for bottom also seems ok.

Could you take a look at the pics and help guide my purchasing? Also from the posts on your website it seems that you recommend using the same channels for both upper and lower? Is there a channel that is better for the floor that isn't boxy ( has a slope to it)?

Thanks for your help.
User submitted photos of bi-fold door pins.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. I have a few suggestions. The threaded pin looks like our 21-001 with the 21-154 rod clamp. As for the guide pins with spring, check out our 21-007. The pivot bracket resembles our 21-200, and finally for the track I think you should consider our 21-402.
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