National Hardware N350-827 Spring Door Hinge 3-1/2 Inch 1/4 Radius Oil Rubbed Bronzeby National Hardware
Important Note: Stanley Hardware recently made the decision to transition the complete builder's hardware product line to the National Hardware brand. National Hardware® is the manufacturer-owned brand, whereas Stanley® and the Stanley® Logo are trademarks of Stanley Black & Decker, Inc., or an affiliate thereof, and are used under license.
This change primarily affects packaging and SKU numbers and will have no impact on product performance since both the Stanley® and National Hardware® products are held to the same testing and safety standards and have been manufacturerd by National Hardware® for over 10 years. For more info, contact Stanley National Hardware at 1-800-346-9445.
- Closing speed is adjustable
- Tension is adjustable
- 1/4 in radius round corners
- Automatically closes doors
- Fully adjustable with wrench provided
- Lifespan warranty against defects in material and workmanship
- Easy to install
- Use anti-friction hinges with spring hinges for best spring performance
3-1/2 Inch spring adjustable self closing door hinge, manufactured with cold rolled steel, closing speed is adjustable, fits standard cutouts, tension is adjustable, 1/4 inches radius round corners. Hinge is UL approved for fire doors which must use a minimum of 2 spring and one conventional hinge per door. Doors weighing up to 50 pounds require 1 spring hinge, doors up to 85 pounds require 2 spring hinges. Doors up to 110 pounds require 3 spring hinges. Conforms to ANSI/BHMA Standard A156.17-2004. *NFPA-80 requires fire labeled doors to have a minimum of 2 spring hinges. NOTE: All hinges must have pivot points aligned for smooth operation. Always use same hinge sizes.
- 30 Pounds Per Hinge
- Oil Rubbed Bronze
- 1 each
- Adjustable Tension
- Mortise With Metal Machine & Wood Screws
- Cold Rolled Steel
- Product Class
- 1/4 Radius Spring Door Hinges
- 3-1/2 by 3-1/2 Inch
- ANSI BHMA NFPA80 UL
- To Fit
- Metal or Wood Doors & Frames
- Part Number
- Model Number
- Related Departments
- HardwareHingesSpring Action HingesSpring Door Hinges 3-1/2 Inch
- Shipping Weight
- 13.76 ounces
- Domestic Shipping
- Item can be shipped anywhere in the US including APO/FPO addresses and territories.
- International Shipping
- Item can be shipped anywhere in Canada including the territories.