Which parts do I need?

A quick learner from usa says:
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:

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. 

21-001 : Bi-fold Door Pivot Assembly
Bi-fold Door Pivot Assembly
21-001
$6.45
VIEW >
21-007 : Bifold Door Guide Pin
Bifold Door Guide Pin
21-007
$3.20
VIEW >
21-154 : Pivot Rod Clamp
Pivot Rod Clamp
21-154
$1.25
VIEW >
21-200 : Pivot bracket
Pivot bracket
21-200
$2.05
VIEW >
21-277 : Bifold Track Bumper
Bifold Track Bumper
21-277
$1.95
VIEW >
21-401 : Bifold Track, 3' Opening
Bifold Track, 3' Opening
21-401
$8.45
VIEW >
21-403 : Bifold Track, 6' Opening
Bifold Track, 6' Opening
21-403
$16.45
VIEW >
How to Install Bi-Fold Closet Door Pins
How to Install Bi-Fold Closet Door Pins
VIDEO
WATCH >
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