{"product_id":"mckinney-ta386-4-1-2-x-4-1-2-us32d-full-mortise-three-knuckle-concealed-bearing-hinge-heavy-weight-4-1-2-x-4-1-2-square-corner-630-satin-stainless-steel-finish","title":"McKinney TA386 4-1\/2 X 4-1\/2-US32D Full Mortise Three Knuckle Concealed Bearing Hinge, Heavy Weight, 4 1\/2\" x 4 1\/2\" Square Corner, 630 Satin Stainless Steel Finish","description":"\u003ch2\u003eMcKinney TA386 4-1\/2 X 4-1\/2-US32D Full Mortise Three Knuckle Concealed Bearing Hinge, Heavy Weight, 4 1\/2\" x 4 1\/2\" Square Corner, 630 Satin Stainless Steel Finish\u003c\/h2\u003e\u003cp\u003eThe McKinney TA386 is a heavy weight full mortise butt hinge engineered for high-frequency, high-traffic openings where durability matters most. Built with a three knuckle concealed bearing design, it delivers smooth, quiet operation while supporting substantial door weight over years of service. Measuring 4-1\/2\" x 4-1\/2\" with square corners, this hinge is finished in 630 satin stainless steel (US32D) for excellent corrosion resistance and a clean, professional appearance. Its concealed bearing construction keeps friction low and wear to a minimum, making it a reliable choice for commercial entrances, institutional facilities, and other demanding environments where consistent performance is essential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThree knuckle concealed bearing design provides smooth, quiet swing and long service life.\u003c\/li\u003e\n\u003cli\u003eHeavy weight construction supports heavy and high-frequency doors.\u003c\/li\u003e\n\u003cli\u003e4-1\/2\" x 4-1\/2\" size with square corners for standard commercial applications.\u003c\/li\u003e\n\u003cli\u003e630 satin stainless steel finish resists corrosion and maintains a professional look.\u003c\/li\u003e\n\u003cli\u003eFull mortise mounting for secure installation into door and frame.\u003c\/li\u003e\n\u003cli\u003eConcealed bearings reduce friction and minimize maintenance over time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Specifications\u003c\/h4\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eMcKinney\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eTA386-4.5-4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003e630 Satin Stainless Steel (US32D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHinge Type\u003c\/th\u003e\n\u003ctd\u003eFull Mortise Butt Hinge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eThree Knuckle Concealed Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight Class\u003c\/th\u003e\n\u003ctd\u003eHeavy Weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorner Type\u003c\/th\u003e\n\u003ctd\u003eSquare Corner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit of Measure\u003c\/th\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade\u003c\/th\u003e\n\u003ctd\u003eCommercial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLimited Warranty\u003c\/th\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\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e4-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth (open)\u003c\/th\u003e\n\u003ctd\u003e4-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGauge\u003c\/th\u003e\n\u003ctd\u003e0.180\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKnuckle Count\u003c\/th\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eConcealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBase Material\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorner Radius\u003c\/th\u003e\n\u003ctd\u003eSquare (1\/4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Holes\u003c\/th\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFastener Type\u003c\/th\u003e\n\u003ctd\u003eWood and Machine Screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Door Type\u003c\/th\u003e\n\u003ctd\u003eHeavy, High Frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"MCKINNEY","offers":[{"title":"Default Title","offer_id":48400715251918,"sku":"TA3864545US32D","price":62.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/3493\/4478\/files\/TA3864545US32D.png?v=1790348286","url":"https:\/\/qualitydoor.com\/products\/mckinney-ta386-4-1-2-x-4-1-2-us32d-full-mortise-three-knuckle-concealed-bearing-hinge-heavy-weight-4-1-2-x-4-1-2-square-corner-630-satin-stainless-steel-finish","provider":"QualityDoor.com","version":"1.0","type":"link"}