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When an Exit Device Stops Latching: How the Cam and Housing Assembly Fails and What to Do Before Replacing the Whole Device
Hinge Weight Ratings vs Door Cycle Counts: Matching the Right Grade to How Hard the Opening Actually Works
Silicone Bulb Gasketing on Fire Doors: Why Material Choice Determines Whether the Seal Survives the Test
Upgrading a Heavy-Duty Door to an Electrified Hinge: What the Mortar Guard and Wire Passage Actually Require