Prime-Line Single 1-1/4 in. Steel Ball Bearing Roller, F-Tab Style, Adjustable (Single Pack)

This is a F-tab patio door roller assembly with a 1-1/4 in. concave or grooved steel ball bearing roller. When the corner screw passes through the F-tab the assembly is captured by the side stile and bottom rail as the screw draws the two sides together. The housing is 5/8 in. wide with a 11/16 in. flare, 1-1/4 in. tall with a rear adjusting screw. Replaces the old style Couples door roller and is used by a variety of patio door manufacturers.