FHC Screen Door Tension Spring 1"Nylon Roller In Stainels Steel Housing/Spring

Features Used By A Variety Of Patio Door Manufacturers Concave Roller 1 In. Diameter High Density Polyethylene Roller Heat Treated Stainless Steel M Style Tension Spring Roller Assembly Is 5/16 In. Wide Roller Width Is 1/4 In. Easy To Install For Further Dimensional Information, Please See The Line Drawing This is a stainless steel roller assembly, with-M shaped tension spring with a 1 in. high density polyethylene roller. It is used by a variety of patio door manufacturers. The heat treated stainless steel tension spring is 2-5/16 in. long and shaped like an M, giving it the tension needed by the screen door to slide properly.