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Door Hinge


  • 3 Knuckle design
  • Template hinge
  • For Automatic closing of doors. Meets codes for hotels, motels, institutions and commercial buildings
  • Adjustable Tension, adjusting tool included
  • Standard screw packaging on sizes
  • 4-1/2” x 4” (114 x 101mm) and 4-1/2” x 4-1/2” (114 x 114mm) is all machine and 1/2 wood.
  • Machine screws for 4” x 4” (101 x 101mm) hinges packed upon request – specify size and application.
  • Maximum door size:
  • For labeled doors 3’ x 7’(914 x 2134mm), the maximum door size is based on the limits set forth by NFPA Standard #80. Labeled doors require Ball Bearing hinges. For nonlabeled doors 4’0”(1220mm) wide, 4” x 4” (101 x 101mm) Spring hinges are not recommended. For non-labeled doors over 7’6” (2250mm) in height, use an additional hinge for each additional 30”(750mm) of height or fraction thereof.
  • Notes:
  • 1. For maximum versatility, use all spring hinges or a combination of spring hinges and ball bearing hinges. Do not use plain bearing hinges.
  • 2. Full spring tension may not be required on all hinges.

Our G50 door hinge is a 3 knuckle design and template hinge.
This door hinge is for automatic closing of doors and meets code for hotels, institutions and commercial buildings.