National 4 In. 1/4 In. Radius Brass Spring Door Hinge PolyCarb Product Description

Product Description

High-impact thermoplastic

100% cellular PVC (polyvinyl chloride) flat utility trim molding

No lock-out feature automatically unlocks when exiting to prevent unwanted lock-out situations

National 4 In. 1/4 In. Radius Brass Spring Door Hinge PolyCarb Product DescriptionCatalog model No. V521 series. Cold rolled steel. Designed for hanging self closing doors in basements, stairways, garages, and entrances. Can be used in residential, commercial, and apartment buildings. Hinge is UL approved for fire doors. Closing speed is adjustable. Fits standard hinge cutout. 1 4" radius, round corner automatic door closing spring hinge.