Buy a replacement spring hinge for your Heavy Duty Dog Door or Big Dog Door. This hinge connects the flap to the frame for smooth opening and closing.
Self Closing Door Hinges Spring Hinge Heavy Duty Hinges for
Ramp Assist Spring, HINGE MOUNT, Stainless Steel-1/2 in. Right Hand
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. Generally two hinges on the door must be spring hinges to provide adequate closing force. NFPA requires a minimum of two (2) spring hinges on labeled doors. This non-handed spring hinge series is adjustable and tension can be added or reduced by means of a hex key that is provided.
McKinney Full Mortise Spring Hinge Standard Weight 4-1/2 x 4-1/2 Square Corner Bright Brass 1502 4-1/2X4-1/2 3
Part Number, Spring Hinges, MISUMI
This surface mounted metal gate hinge is made in the USA, Non-adjustable spring tension, Applied to the surface of the gate on both sides and the
Surface Mounted Double Acting Spring Gate Hinge
RELIABILT 3-1/2-in H x 1/4-in Radius Satin Nickel Mortise Interior
Double Action Spring Hinge Stainless Steel 3x4-13/16
Stainless Steel Self-Closing Outdoor Hinges, Heavy Duty Hinges For Wood Gates
Bommer 7813 Horizontal Spring Pivot
Hillman Group 851594 Carded - Zinc Adjustable Spring Door Hinge, 3
Stainless Steel Spring Hinge, 1/4 Radius