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Spring Hinges
Frequently Asked Questions
What is a spring hinge?
A spring hinge is a self-closing hinge that uses built-in spring tension to automatically shut the door after opening. At National Lock Supply, we carry UL-certified spring hinges ideal for light commercial and residential doors where automatic closing is required.
How do they compare to door closers?
Spring hinges close doors automatically but offer less control than door closers. A closer allows adjustments for sweep speed, latch speed, and backcheck, while spring hinges simply pull the door shut with spring force.
Where are spring hinges used?
Commonly installed on apartment entry doors, office suite doors, and residential fire-rated doors, where a code-compliant self-closing function is required.
Are spring hinges UL-listed?
Yes. Many are UL-rated for use on fire doors, ensuring compliance with self-closing fire protection standards.
Are spring hinges ADA compliant?
Yes, if adjusted to maintain low opening resistance, keeping within ADA force requirements for accessibility.
What finishes are available?
Satin Chrome, Bright Brass, and Oil-Rubbed Bronze, ensuring consistency with standard door hardware finishes.
Can tension be adjusted?
Yes. Spring hinges allow tension adjustment to increase or decrease closing force, depending on the door’s weight and usage.
What door thickness do they fit?
Most spring hinges are designed for standard 1-3/8″ and 1-3/4″ thick doors, compatible with ANSI hinge prep.
Do they replace regular hinges?
Yes. Spring hinges are manufactured in standard butt hinge sizes, making retrofits simple without major door/frame modifications.
Why buy spring hinges from National Lock Supply?
We supply UL-listed spring hinges in multiple finishes and sizes, with expert guidance to meet fire code and ADA requirements.