This is a side mounted, top hung wardrobe roller assembly with a single 7/8 in. convex nylon wheel for the back sliding door. The stamped steel bracket assembly is adjustable and has an 1/2 in. offset. It is fitted onto the wardrobe front door and fits 3/4 in. to 1-3/8 in. thick doors. Used by Cox door systems as well as a variety of other wardrobe door manufacturers. For the back wardrobe door see Prime-Line part N 6505.
This is a top mount bi-fold door pivot that is typically used on Alliance bi-fold doors. The spring loaded 1/4 inch steel pin inserts into a pre-drilled hole in the door and a top bracket above, creating a pivot point for your bi-fold door. Each steel pin is self-adjusting and features a mold injected clear plastic base. No fasteners are required for installation, but a soft mallet can be used with caution.