National 4 In. Satin Nickel 1/4 In. Radius Spring Door Hinge CLC 5 GPM VOC compliant brass

5 GPM VOC compliant brass fan nozzle for easy coverage attaches directly to shuf-off or extension

Thick-Body offers a 1mm size blade

Locks against vibration loosening

1-Year Limited Warranty

National 4 In. Satin Nickel 1/4 In. Radius Spring Door Hinge CLC 5 GPM VOC compliant brassCatalog 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.