Casement Window Part, Slide Hinge Arms RF-01

BiltBest Window Parts, Casement Hinge Arm (Per Pair) .. Replacement Parts for Casement Windows - Hinge Arm Assembly - Hinge Arms (Per Pair) #RF-01; Truth BiltBest Window Hardware. NOTE: The #RF-01 and #RF-02 are identical except the RF01 has a retainer clip on the end of the arm that attaches to the hinge track. These hinges are used on the newer models which slide in a track that is about 10" long.  Some of the 10" tracks have a spring steel wire ring on the hinge track post and require the RF-02 hinge. NOTE: If you are unsure if you need the RF-01 or RF-02, it would be best to get the RF-01 since the retainer clip can be removed - making it the same as RF-02 Model.