Hardware for metal bi-fold closet doors

A home owner from Potomac, MD says:

Hello,

I want to replace all hardware of my metal bi-fold closet doors in my house, and need help to identify what they are.

Thank you,

Lei 

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Paul from SWISCO responded:

Hello,

For each panel of your Benchmark door, you will need one 21-002 bottom corner adjusting pin and three of the 21-044 spring-loaded guide pins. Your photos show two panels, so you would double the quantity to two of the 21-002 and six 21-044. Take a look and thanks for posting!

A home owner from Potomac, MD says:
Paul,
Thank you so much for your help! I found both 21-044 and 21-091 spring loaded guide pins have been used on closet doors in my house. What's the difference between them and which one is a better choice? Do I need to buy the following as well? I plan to replace all the hardware on those doors. Are there any installation videos?
21-160 5/16" Speed Nut
21-209 Pivot Bracket, Benchmark
21-157 Spring Retainer
Thanks much,
Lei
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Paul from SWISCO responded:

I believe you may mean the 21-042 rather than the 21-091 pin. The 21-042 is the older model Benchmark guide pin used on your doors but they converted to the 21-044 pin to make things easier for the homeowner. To change a pin, you'd first remove the door by lowering the bottom adjusting pin, the 21-002, and pull down the two 21-044 pins from the track before pulling out the door. At that point, you can squeeze the 21-157 spring retainer to release the 21-044 pin and replace it. 

The older 21-042 pin with the 21-155 locking push nut requires breaking it to remove the pin from the door. When you are finished, you would place the bottom adjusting pin into the 21-209 bracket and install the 21-044 guide pin in the bottom track. Then, you would carefully swing the door up and place the two 21-044 pins into the top track. The 21-002 pin is used to adjust and square up the door.

A home owner from Potomac, MD says:
Thank you Paul for your detailed explanation and instructions! Maybe 21-091 pins weren't used for some of my closet doors, but I saw cone shape springs were used instead of straight springs, and wondered why. Now I feel confident to replace those hardware by myself.
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Paul from SWISCO responded:

Great! Just let us know if there is anything else that you'd like to clarify and we will do our best to assist you. 

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How to Install Bi-Fold Closet Door Pins
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How to install bi-fold closet door pins
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