Hardware replacement for our closet doors in a rental building.

Hi , my name is Nicolae , I will like to know if you have the hardware for the bifold closet doors in our rental building as showed in the pictures. The first picture is shows the small parts of the hardware assembly for upper tract , holding the door by means of a pivot pin. I saw the pivot pin that fits our closet doors system and the pin cap in your website but I can't find the assembly as show in the pictures because I don't know what is the name or code for it.
If this helps you to find the hardware assembly we are looking for , this are the parts code you have on your website.
Bifold door 1/4 Pin Cap 21-112
Pivot pin 21-084
Please let me know if you have or if you don't have the assembly , at your earliest convenience.
Thank you for your time.
Nick.