Product review (5 stars): Shelf Stud for refrigeration
Part was exactly what I needed.  Was delivered earlier than expected.  The only problem was that I had to find a you tube video to see how to install it as there were no directions on it.  When inserting the stud in the opening you need to give it at least a 360 degree clockwise turn with a pliers or wrench in order for it to lock in place.  Until I figured this out I thought it was the wrong part because it would not stay locked in with only a 180 degree clockwise turn.