Please help identify hardware.

A quick learner from Erie, Pa. says:
Please help identify hardware.Not sure if this is original hardware or not. Need enough hardware to completely re-do two bi-fold doors. Long pieces measure 12
User submitted image of their closet hardware.
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Paul from SWISCO responded:
Looks like you have a Benchmark bi-fold door. The 12" pins are unnecessary. I believe the person was using plain and threaded bar from an hardware store to make pins for the door. The threaded pivot bi-fold pin would be our 21-002, and you would need one per door. You would also need three 21-042 guide pins, which locks on with a push nut, or instead three 21-044, which uses a spring retainer. People like to use the 21-044 because it is easier to install and remove.
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