McKinney 1552 – 4.5″ x 4.5″ Stainless Steel Spring Hinge

McKinney 1552 4-1/2 x 4-1/2 Full Mortise Single Acting Spring Hinge, Standard Weight, Satin Stainless Steel Finish

Some door/frame/wall and even ceiling conditions make door closers impractical. An alternative closing device is the Spring Hinge. Generally, at least two hinges on a door must be spring hinges to provide adequate closing force. Recommended for standard weight, medium frequency doors in place of door closers in apartments, hotels, motels, office buildings, etc.

• Spring hinges are an alternative to door closing devices
• Self-closing, Adjustable
• Tension can be added or reduced by means of provided hex key
• Prevents door from being accidentally left open, saving on heating and cooling costs
• NFPA requires a minimum of two (2) spring hinges on labeled doors
• UL listed and UL10c compliant
• NFPA 80 Compliant

Caution: Use of gasketing for smoke or sound protection, wind conditions or unbalanced air pressure, twisted or misaligned frames or doors, door bottoms, improper latch adjustment may prevent doors from latching. Additional spring hinges may be required.