Benchmark metal bifold door pin guide 21-044

A quick learner says:
What is the length of the 21-044 pin guides? Am I missing it somewhere? My original pin guides (see picture) are 6.375 inches long. Will 21-044 work as a replacement?
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Bob from SWISCO responded:

The length of these bifold door pins is honestly not that important of a dimension. What matters is the diameter of the pin (1/4" for the 21-044) and the diameter of the cap atop the pin (3/8"). Compare those dimensions with your old pin to see if they indeed match up. 

A quick learner says:
I have checked my other doors and they use almost all the length of the original 6-3/8 inch pin so I do think the length is important in my case. I don't want to order them and have the pins be too short and have to return. What is the length?
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Bob from SWISCO responded:

The overall length of the 21-044 is 6-1/4". Let me know if you have further questions. 

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