Slide-Co 13135-1.25 Roller Assembly, 1-1/4 in Dia Roller, 5/16 in W Roller, Steel, 1-Roller, Top, Back Mounting

D 1832 is a plain back patio door roller assembly with a 1-1/4 in concave or grooved steel ball bearing roller. It has a plain back housing that is 3/4 in wide and 1-1/8 in 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 several manufacturers of patio doors.