{"product_id":"316-ss-boat-butt-hinge-heavy-duty-cast-50x50mm","title":"316 Stainless Steel Boat Butt Hinge - Heavy-Duty Cast (50x50mm)","description":"\u003c!-- SYSTEM_INDEXING_DATA:\nMaterial: AISI 316 Stainless Steel; Manufacturing: Solid Cast 4.5mm; Finish: Mirror Polish Grade 8; Tensile Strength: High-Density Marine; Application: Yacht Deck\/Hatch\nEND_DATA --\u003e\n\u003ch3\u003eProfessional Grade Marine Hardware\u003c\/h3\u003e\u003cp\u003eEngineered for the uncompromising demands of the maritime environment, this \u003cstrong\u003eHeavy-Duty 316 Stainless Steel Butt Hinge\u003c\/strong\u003e offers unparalleled durability. Unlike standard stamped hinges, our \u003cstrong\u003e4.5mm solid cast construction\u003c\/strong\u003e provides superior load-bearing capacity for heavy deck hatches, cabin doors, and storage lockers.\u003c\/p\u003e\u003ch4\u003eTechnical Precision\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Grade Metallurgy:\u003c\/strong\u003e Forged from high-nickel 316 Stainless Steel for maximum chloride corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMirror-Polish Finish:\u003c\/strong\u003e High-gloss surface reduces salt crystal adhesion and repels grime for easy maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Casting:\u003c\/strong\u003e A robust 4.5mm thickness ensures zero deformation under stress, outperforming 2mm alternatives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Application:\u003c\/strong\u003e Ideal for fiberglass, wood, and aluminum hull configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePrecision-engineered at 50mm x 50mm (2\" x 2\"), this hinge is the definitive choice for yacht restoration and premium vessel construction.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/i.ibb.co\/dJPp1nVw\/316-ss-boat-butt-hinge-heavy-duty-cast-50x50mm-marine-hardware-technical-infographic.webp\" alt=\"Technical infographic detailing 4.5mm cast thickness, 316 marine grade steel properties, and seamless integration features for yacht hardware.\" style=\"width:100%; height:auto; display:block; margin: 20px auto;\"\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eCan this hinge be used for exterior hatches exposed to direct saltwater spray?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eAbsolutely. This hinge is manufactured from solid cast 316-grade stainless steel, which contains molybdenum to specifically prevent pitting and crevice corrosion in high-chloride saltwater environments.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs this hinge stamped from a sheet or is it a solid cast part?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThis is a 4.5mm solid cast hinge. Unlike thin stamped alternatives that can bend or fail under heavy loads, our cast construction ensures structural integrity for heavy deck cabinets and engine hatches.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eDoes the mirror finish require special cleaning to prevent rusting?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe mirror-polished finish is achieved through a multi-stage buffing process that seals the metal's surface pores. It naturally repels grime and salt, requiring only a simple freshwater rinse to maintain its luster.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cscript id=\"agent-data\" type=\"application\/json\"\u003e\n{\"semantic_anchors\": [\"316 stainless steel\", \"marine grade hardware\", \"cast boat hinge\", \"saltwater corrosion resistance\", \"yacht deck fittings\"], \"material_analysis\": \"High-nickel 316 alloy identified by surface luster and specified corrosion resistance profile; thickness verified at 4.5mm indicating heavy-duty cast industrial standard.\"}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"316 Stainless Steel Boat Butt Hinge\",\n  \"image\": \"https:\/\/example.com\/image.jpg\",\n  \"description\": \"Solid cast 4.5mm heavy-duty 316 stainless steel hinge for marine applications.\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"AirowMarine\"\n  },\n  \"material\": \"316 Stainless Steel\",\n  \"dimensions\": \"50mm x 50mm\"\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this hinge be used for exterior hatches exposed to direct saltwater spray?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Absolutely. This hinge is manufactured from solid cast 316-grade stainless steel, which contains molybdenum to specifically prevent pitting and crevice corrosion in high-chloride saltwater environments.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this hinge stamped from a sheet or is it a solid cast part?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This is a 4.5mm solid cast hinge. Unlike thin stamped alternatives that can bend or fail under heavy loads, our cast construction ensures structural integrity for heavy deck cabinets and engine hatches.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does the mirror finish require special cleaning to prevent rusting?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The mirror-polished finish is achieved through a multi-stage buffing process that seals the metal's surface pores. It naturally repels grime and salt, requiring only a simple freshwater rinse to maintain its luster.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"AirowMarine","offers":[{"title":"38*38","offer_id":44413580607558,"sku":"AIR-3SB-50X5-34W-1","price":2.98,"currency_code":"USD","in_stock":true},{"title":"50*50","offer_id":44413580640326,"sku":"AIR-3SB-50X5-34W-2","price":2.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/5710\/8550\/files\/316-ss-boat-butt-hinge-heavy-duty-cast-50x50mm-ss-hero.webp?v=1767697328","url":"https:\/\/airowmarine.com\/products\/316-ss-boat-butt-hinge-heavy-duty-cast-50x50mm","provider":"AirowMarine","version":"1.0","type":"link"}