Which parts do I need?

A quick learner from usa says:
June 15, 2021
These are metal bi-fold doors. I've used in the past parts I got at Lowe's, but, they don't last, they are not the proper parts. The pins are 1/4" and the piece of plastic that rides in the track is 3/8". Can you help?
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Paul from SWISCO responded:
June 18, 2021

Hello!

Your Slimfold bi-fold door uses one 21-001 bottom threaded adjusting pin and three 21-007 spring loaded guide pins with the sleeves. You seem to have the correct pins. 
Bi-fold Door Pivot Assembly
Bi-fold Door Pivot Assembly
21-001
$6.95
Bifold Door Guide Pin
Bifold Door Guide Pin
21-007
$3.87
Bifold Track, 3' Opening
Bifold Track, 3' Opening
21-401
$8.71
Bifold Track, 6' Opening
Bifold Track, 6' Opening
21-403
$18.57
Pivot bracket
Pivot bracket
21-200
$2.12
Bifold Track Bumper
Bifold Track Bumper
21-277
$2.07
Pivot Rod Clamp
Pivot Rod Clamp
21-154
$1.46
How to Install Bi-Fold Closet Door Pins
How to Install Bi-Fold Closet Door Pins
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