Prime-Line 1-1/2 in. D X 2-5/8 in. L Steel Roller Assembly 1 pk

This is a plain back patio door roller assembly with a 1-1/2 inch concave or grooved steel ball bearing roller. The housing is 3/4 inch wide and 1-1/8 inch tall. It is rear adjusting with a 1/4-20 threaded mounting hole on the back end and an optional use #10-32 threaded hole on top. It is used by a variety of sliding patio door manufacturers.