3 1/2" Single Action Spring Hinge with Square Corners

Our 3 1/2-Inch Single Action Spring Hinge with Square Corners is typically used on interior garage doors or anywhere a self-closing door is required. As required by building codes in many areas, this solid-steel hinge is UL Listed with a 60-minute fire rating (when used on a fire door, a minimum of two spring hinges are required). Suitable for right or left hand installation, the spring tension is easily adjustable. Choose from a host of classic finish options.

Dimensions: 3 1/2" H x 3 1/2" W leaves only, 4" H overall .
Leaf: 1 1/4". Leaf thickness: 1/8".
Barrel diameter: 3/4".
Fasteners: #8 x 1" wood screws and 1/2" machine screws.

These hinges are mounted just like a butt hinge and are mortised into the edge of the door and the door frame.