{"product_id":"national-marker-n225920-stainless-steel-door-hinge","title":"National Marker N225920 Stainless Steel Door Hinge","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NATIONAL MARKER N225920 is a 3.5-inch square stainless steel door hinge built for applications where corrosion resistance and long-term durability are required. Constructed from heavy-gauge stainless steel, this hinge features a 5-knuckle, full mortise design with square corners and countersunk screw holes for a clean, finished installation. The non-rising pin stays flush during operation, and the removable pin simplifies installation and removal. A nob detail on the hinge body provides a finished appearance suitable for visible door hardware applications. This hinge is installed by carpenters, general contractors, and maintenance professionals working on interior or exterior door assemblies.\u003c\/p\u003e\n\u003cp\u003eThis hinge is suited for residential and light commercial door installations where stainless steel is specified to resist moisture, humidity, or corrosive environments. Typical applications include exterior entry doors, marine or coastal environments, commercial restroom partitions, and any setting where standard steel hinges would be prone to rust or surface degradation. The full mortise design requires a routed mortise pocket in both the door edge and the frame, making it appropriate for new construction and full door replacement projects where proper preparation of the door and frame is completed before installation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless steel construction for maximum corrosion resistance in humid or exterior environments\u003c\/li\u003e\n  \u003cli\u003eHeavy-gauge material provides added strength for solid and hollow-core door applications\u003c\/li\u003e\n  \u003cli\u003e5-knuckle, full mortise design for a flush, professional installation\u003c\/li\u003e\n  \u003cli\u003eSquare corners for standard mortise compatibility\u003c\/li\u003e\n  \u003cli\u003eCountersunk screw holes allow fastener heads to sit flush with the hinge leaf\u003c\/li\u003e\n  \u003cli\u003eRemovable non-rising pin for easier installation and door removal\u003c\/li\u003e\n  \u003cli\u003eNob detail on hinge body for a finished, decorative appearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation hinge for standard full mortise door applications requiring a 3.5-inch square stainless steel hinge.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by carpenters or general contractors as part of door hanging or replacement work. Power down any electric strike or access control hardware associated with the door before beginning work. A full mortise installation requires accurate routing of the hinge pocket in both the door edge and the door frame to achieve a flush fit. Follow applicable building codes for door hardware installation and use appropriately rated fasteners for the door and frame material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 3.5 inches square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign\u003c\/strong\u003e: Full Mortise, 5 Knuckle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Style\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePin Type\u003c\/strong\u003e: Non-Rising, Removable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScrew Holes\u003c\/strong\u003e: Countersunk\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.532 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00038613225923\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: NATIONAL MARKER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: N225920\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL MARKER","offers":[{"title":"Default Title","offer_id":51346246074674,"sku":"N225920","price":33.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310550475.jpg?v=1782075029","url":"https:\/\/voomisupply.com\/products\/national-marker-n225920-stainless-steel-door-hinge","provider":"Voomi Supply","version":"1.0","type":"link"}