National 3.5 In. Oil Rubbed Bronze 1/4 In. Radius Spring Door Hinge Electric Water Heater heavy duty steel single sheave

heavy duty steel single sheave fixed eye pulley

Meets Federal Specification TT-F-340C

1-3/8-Inch x 72"

cattle gates & other heavy duty uses

Spring-loaded door quickly reacts to lock animal in securely and prevents escapes

National 3.5 In. Oil Rubbed Bronze 1/4 In. Radius Spring Door Hinge Electric Water Heater heavy duty steel single sheaveCatalog 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.