{"product_id":"mckinney-rbt4a3786-4-1-2x4-1-2-us26d-full-mortise-heavy-weight-bearing-hinge-five-knuckle-626-satin-chrome-finish","title":"McKinney RBT4A3786-4-1\/2x4-1\/2-US26D Full Mortise Heavy Weight Bearing Hinge, Five Knuckle, 626 Satin Chrome Finish","description":"\u003ch2\u003eMcKinney RBT4A3786-4-1\/2x4-1\/2-US26D Full Mortise Heavy Weight Bearing Hinge, Five Knuckle, 4-1\/2\" x 4-1\/2\", Square Corner, 626 Satin Chrome Finish\u003c\/h2\u003e\u003cp\u003eThe McKinney RBT4A3786 is a full mortise heavy weight bearing hinge engineered for high-frequency, high-traffic openings where standard hinges fall short. Measuring 4-1\/2\" x 4-1\/2\" with a square corner template and a durable 626 Satin Chrome finish, it features a five knuckle design with concealed ball bearings that carry heavy doors smoothly and quietly over years of service. Built for both commercial and institutional environments, this hinge delivers consistent performance on solid core and heavy timber doors. Its robust construction reduces sag and wear, making it a dependable choice for entryways, corridors, and other demanding applications requiring long-term reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFull mortise design for flush installation on door and frame.\u003c\/li\u003e\n\u003cli\u003eHeavy weight construction handles wider, heavier doors and high-frequency use.\u003c\/li\u003e\n\u003cli\u003eFive knuckle configuration with ball bearings for smooth, quiet operation.\u003c\/li\u003e\n\u003cli\u003e4-1\/2\" x 4-1\/2\" size with a square corner template.\u003c\/li\u003e\n\u003cli\u003eAttractive 626 Satin Chrome finish suited to a range of commercial interiors.\u003c\/li\u003e\n\u003cli\u003eSuitable for solid core, heavy timber, and high-traffic openings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct 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Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSquare Corner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy Weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBAA Qualified\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLimited Warranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth (open)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBearing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBall Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Knuckles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy Weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFull Mortise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCorner Radius\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSquare Corner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Holes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-Removable (NRP available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-Frequency \/ High-Traffic Doors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"MCKINNEY","offers":[{"title":"Default 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