Bottom hardware for bi-fold door

Do you carry this part? It is the piece that fits into the bottom track mounted next to the floor for a bi-fold door. This part is 1/4 20 and 2 inches long. I need the same one only longer, at least one half inch longer. We got new floors and the new flooring is thinner than the old, hence the need for a longer part. Also, I need two of them. Thank you.