Prime-Line D 1686 1-1/4 In. Steel Ball Bearing Sliding Door Roller Assembly (Single Pack)

Used by a variety of metal sliding patio door manufacturers, As the corner screw passes through the F-tab it is captured by the side stile and bottom rail as the screw draws the two sides together, 1-1/4 inch diameter ball bearing concave roller, Stamped steel housing and roller, F-tab housing