{"product_id":"marine-316-stainless-steel-boat-hatch-hinges-1-5-inch-3-hole-heavy-duty","title":"Marine 316 Stainless Steel Hinges - Heavy Duty Boat Hatch \u0026 Cabinet Hardware 1.5 Inch 3 Hole \u0026 38mm 50mm 2 Hole Options","description":"\u003cstyle\u003e\n\/* Unified styling for this section only *\/\n.hdiy-product-block h2, .hdiy-product-block h3 {\n  margin-top: 1.5rem;\n  margin-bottom: 0.75rem;\n  border-bottom: 1px solid #eaeaea;\n  padding-bottom: 0.5rem;\n}\n.hdiy-product-block ul {\n  margin: 0.5rem 0 1rem 1.5rem;\n  padding-left: 0;\n  list-style-position: outside;\n}\n.hdiy-product-block li {\n  margin-bottom: 0.75rem;\n  line-height: 1.5;\n}\n.hdiy-product-block p {\n  margin-bottom: 1rem;\n}\n.hdiy-table-wrapper {\n  width: 100%;\n  overflow-x: auto;\n  -webkit-overflow-scrolling: touch;\n  margin: 1rem 0;\n}\n.hdiy-product-block table {\n  width: 100%;\n  border-collapse: collapse;\n  font-size: 0.95rem;\n  min-width: 400px;\n}\n.hdiy-product-block th, .hdiy-product-block td {\n  border: 1px solid #ddd;\n  padding: 0.75rem;\n  text-align: left;\n  vertical-align: middle;\n}\n.hdiy-product-block th {\n  background-color: #f5f5f5;\n  font-weight: 600;\n}\n.hdiy-product-block .faq-item {\n  border: 1px solid #eee;\n  border-radius: 6px;\n  padding: 1rem;\n  margin-bottom: 0.75rem;\n  background-color: #fafafa;\n}\n.hdiy-product-block .faq-question {\n  font-weight: 700;\n  margin-bottom: 0.25rem;\n  display: block;\n}\n.hdiy-product-block .faq-answer {\n  margin: 0;\n  line-height: 1.6;\n}\n\u003c\/style\u003e\n\u003cdiv class=\"hdiy-product-block\"\u003e\n\u003c!-- 1. Product Overview --\u003e\n\u003ch2\u003e⛵ Heavy Duty Marine 316 Stainless Steel Hinges for Boat Hatches, Cabinets \u0026amp; Boxes\u003c\/h2\u003e\n\u003cp\u003eWhether you are rebuilding a boat hatch, replacing worn-out hinges on a storage locker, or upgrading your RV cabinet hardware, these marine-grade 316 stainless steel hinges are built to last. Made with a solid, thick plate and a high-strength anti-pullout pin, they provide smooth, reliable operation even in harsh saltwater environments. Available in three versatile sizes to fit everything from small access panels to heavy-duty engine compartment doors.\u003c\/p\u003e\n\u003c!-- 2. Product Features --\u003e\n\u003ch2\u003e🔩 Key Features of These 316 Stainless Steel Hinges\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium 316 Marine Grade Stainless Steel:\u003c\/strong\u003e Unlike cheaper 304 steel, these hinges are manufactured using high-quality 316 stainless steel with a mirror polish. They offer superior resistance to corrosion, rust, and pitting from saltwater, making them perfect for boats, yachts, and ships.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Duty Construction:\u003c\/strong\u003e Available in 2mm and 5mm thickness options. The solid butterfly or square leaf design ensures these hinges can handle heavy doors and lids without bending or warping over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Pullout Solid Pin:\u003c\/strong\u003e The knuckle joint features an integrated anti-pullout pin (as seen in our photos), preventing the pin from sliding out even under heavy vibration or operational stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Size Options for Every Application:\u003c\/strong\u003e Choose the right hinge for your job. We offer a 38x38mm 2-hole hinge for light cabinets, a 50x50mm 2-hole thick hinge for medium doors, and a 1.5-inch 3-hole wide hinge (75mm wide) for wider hatches and box covers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation \u0026amp; Wide Application:\u003c\/strong\u003e Comes with countersunk holes for flush screw mounting. Not just for marine use, these are also excellent heavy-duty hinges for RVs, campers, trucks, and tool boxes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 3. Specifications Table --\u003e\n\u003ch2\u003e📐 Product Specifications\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrapper\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003e38mm Square 2-Hole\u003c\/th\u003e\n\u003cth\u003e1.5 Inch 3-Hole Wide\u003c\/th\u003e\n\u003cth\u003e50mm Square 2-Hole Heavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e316 Marine Grade Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Width (Open)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38mm (1.5 inches)\u003c\/td\u003e\n\u003ctd\u003e75mm (2.95 inches)\u003c\/td\u003e\n\u003ctd\u003e50mm (1.97 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Height (Closed)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38mm (1.5 inches)\u003c\/td\u003e\n\u003ctd\u003e40mm (1.57 inches)\u003c\/td\u003e\n\u003ctd\u003e50mm (1.97 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePlate Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2mm\u003c\/td\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003ctd\u003e5mm\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\u003e4 holes (2 per side)\u003c\/td\u003e\n\u003ctd\u003e6 holes (3 per side)\u003c\/td\u003e\n\u003ctd\u003e4 holes (2 per side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHole Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHole Spacing (Horizontal)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22mm\u003c\/td\u003e\n\u003ctd\u003e20mm (between holes on the same side)\u003c\/td\u003e\n\u003ctd\u003e34mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurface Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eMirror Polished \/ Passivated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmall cabinets, panels\u003c\/td\u003e\n\u003ctd\u003eHatches, tool boxes\u003c\/td\u003e\n\u003ctd\u003eHeavy doors, trunks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 4. Frequently Asked Questions (FAQ) --\u003e\n\u003ch2\u003e❓ Frequently Asked Questions About Marine Hinges\u003c\/h2\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cspan class=\"faq-question\"\u003eWhat is the difference between 304 and 316 stainless steel for boat hardware?\u003c\/span\u003e\n\u003cp class=\"faq-answer\"\u003e316 stainless steel contains molybdenum, which makes it far more resistant to saltwater and chloride corrosion than 304 stainless steel. For boats, including fishing boats, yachts, and any vessel exposed to spray or salt, 316 is the recommended choice to prevent pitting and rust over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cspan class=\"faq-question\"\u003eWhich hinge thickness do I need for my boat hatch?\u003c\/span\u003e\n\u003cp class=\"faq-answer\"\u003eWe offer two thickness options: 2mm and 5mm. The 2mm hinges (like the 38x38mm style) are great for light cabinet doors or access panels. The 5mm heavy-duty hinges (like the 50x50mm square and 1.5 inch 3-hole wide models) are built for high-traffic areas, heavy hatches, or locker lids that hold weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cspan class=\"faq-question\"\u003eAre screws included with these hinges?\u003c\/span\u003e\n\u003cp class=\"faq-answer\"\u003eScrews are not included with the hinge itself. We recommend using marine-grade 316 stainless steel screws to match the hinge. The counter-sunk holes are standard sizes (4mm or 5mm diameter), so you can easily pick up screws from any local hardware store or marine supply shop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cspan class=\"faq-question\"\u003eCan I use these hinges for my RV or truck toolbox?\u003c\/span\u003e\n\u003cp class=\"faq-answer\"\u003eAbsolutely! While these are marine-grade, they are also excellent for RVs, campers, and trucks. The rust-resistant stainless steel and heavy-duty construction make them perfect for exterior storage compartments and tool boxes exposed to rain or road salt.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cspan class=\"faq-question\"\u003eWill the pin come out over time?\u003c\/span\u003e\n\u003cp class=\"faq-answer\"\u003eNo. These hinges feature a solid knuckle joint with an integrated anti-pullout design. The pin is secured permanently into the assembly, so it will not slide out, even with heavy vibration or frequent opening and closing of the door or hatch.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"1.5\" 3-Hole Hinge","offer_id":52268572770578,"sku":"HKTBCLA390001","price":25.8,"currency_code":"USD","in_stock":true},{"title":"38x38x2mm 2-Hole Hinge","offer_id":52268572803346,"sku":"HKTBCLA390002","price":18.8,"currency_code":"USD","in_stock":true},{"title":"50x50x5mm 2-Hole Hinge","offer_id":52268572836114,"sku":"HKTBCLA390003","price":26.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/O1CN01VPabDt1gv1DLHOglU__2859854203.jpg?v=1778655095","url":"https:\/\/homediyer.com\/products\/marine-316-stainless-steel-boat-hatch-hinges-1-5-inch-3-hole-heavy-duty","provider":"HomeDIYer","version":"1.0","type":"link"}