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4 x 4 x Square Corners Heavy Duty Spring Hinge, Pair, PBB-SP814040
The PBB-SP814040 is a heavy-duty spring hinge pack, sized 4" x 4" with square corners. These hinges are designed for self-closing door applications and meet ANSI K8107 standards.
Each pack includes all necessary installation hardware, including a tension adjusting tool, locking pins, and installation screws. The hinges are UL Listed (R-4667 653MD) for fire door applications and constructed from durable steel with .130 gauge metal.
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