National 4 In. Oil Rubbed Bronze 1/4 In. Radius Spring Door Hinge Brand_KILZ Tested for structural applications and

Tested for structural applications and can be used to resist wind and seismic loads

Belt Speed (variable speed) : 690 - 1

1/4-Inch Shackle Diameter

and other finish applications

mildew resistant

National 4 In. Oil Rubbed Bronze 1/4 In. Radius Spring Door Hinge Brand_KILZ Tested for structural applications andCatalog 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.