How do you install rack nuts?

How do you install rack nuts?

https://www.youtube.com/watch?v=mbp9bFUtcNk

How do you remove rack studs?

- SUPPORT. Support your equipment and then remove the top black lock nuts first followed by the bottom ones and remove your gear. - REMOVE. Remove the yellow lock washers. - RELEASE. Squeeze the rear spring section to release the clip. - COMPRESS.

How do you use a square rack nut?

https://www.youtube.com/watch?v=zRT6UFVQNmo