{"product_id":"deltana-dsh4r42d-radius-spring-hinge-zinc-dichromate","title":"Deltana DSH4R42D Radius Spring Hinge Zinc Dichromate","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe DELTANA DSH4R42D is a radius-corner spring hinge designed for standard door installations where self-closing action is required. Measuring 4 inches x 4 inches with a 0.25-inch radius corner, this hinge provides consistent tension return to keep doors closed without a separate door closer. The zinc dichromate plated finish offers corrosion resistance suitable for interior applications. Carpenters, door installers, and general contractors install this hardware as part of new door assemblies or retrofit projects where code or facility requirements call for self-closing doors.\u003c\/p\u003e\u003cp\u003eThe DSH4R42D is suited for residential and light commercial door applications where a self-closing hinge replaces a standard butt hinge in the same mortise location. The radius corner profile matches common door prep dimensions, making it a direct drop-in for most pre-mortised door frames. It is sold as a single unit, allowing installers to specify the exact quantity needed per door leaf.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSelf-closing spring mechanism provides automatic door return without a separate overhead closer\u003c\/li\u003e\n\u003cli\u003e4 inches x 4 inches leaf size fits standard residential and light commercial door prep\u003c\/li\u003e\n\u003cli\u003e0.25-inch radius corner profile matches common pre-mortised hinge cutouts\u003c\/li\u003e\n\u003cli\u003eZinc dichromate plated finish for corrosion resistance on interior installations\u003c\/li\u003e\n\u003cli\u003eSold individually, allowing flexible per-door quantity selection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation spring hinge for standard 4 inches x 4 inches mortised door applications requiring a radius corner profile.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by carpenters or door hardware installers using a chisel, router, or pre-mortised door prep. Ensure the door is properly supported and the frame is plumb and square before mounting. Spring tension adjustment is typically made with the tension pin or adjustment tool included or specified by the manufacturer — do not over-tension the spring coil. Verify local building codes, including accessibility requirements (ADA or IBC), for self-closing door hardware specifications before installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Size\u003c\/strong\u003e: 4 inches x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc Dichromate Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Length\u003c\/strong\u003e: 5.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 2.8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 0.9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSales Unit\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DELTANA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: DSH4R42D\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DELTANA","offers":[{"title":"Default Title","offer_id":51563820646706,"sku":"DSH4R42D","price":21.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d6898cb338769edb1e9d83c00e229536.jpg?v=1786504130","url":"https:\/\/voomisupply.com\/products\/deltana-dsh4r42d-radius-spring-hinge-zinc-dichromate","provider":"Voomi Supply","version":"1.0","type":"link"}