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New Life 9-1135 (Pack of 2) Bi-Fold Door Top Pivot with 7/8 Roller Wheel
This bi-fold door top mount pivot pin is designed to make hanging your bi-fold doors easy and it functions as a hinge. It is constructed by Metal body, with a spring loaded metal pin to make hanging your bi-fold doors easy. It's very easy to install, remove, and re-install your door. It fits on 1 in. to 1-3/8 inch. thick bi-fold door. The pivot metal pin's diameter is 1/4 in. and the Metal base's diameter is 7/16 in. This comes with 7/8 inch nylon roller, that goes at the top of the metal pin, to smoothly slide

Price is $6.00
Price: $6.5