{"product_id":"pro-grade-concealed-fire-rated-hinge-with-non-remo","title":"Pro Grade Concealed Fire Rated Hinge With Non Removeable Pin For 1 3\/4 Inch Doors Opens 180 Degrees In Satin Brass Alloy Steel UL Listed Full Mortise Security Hinge Rock Solid Design For Heavy Duty Use","description":"\u003cdiv\u003e\n\u003cp\u003ePremium concealed fire door hinges for secure installations\u003cbr\u003e✔️ Fits 1 3\/4 inch doors with fully mortised UL rated steel\u003c\/p\u003e \u003cp\u003eYou need smooth swinging paths for busy commercial entrances. This concealed hinge locks flat inside the frame so visitors never see hardware. Heavy duty steel handles thousands of openings without wobbling. Flip the door open to a full 180 degrees and keep the walkway clear.\u003c\/p\u003e ✅ Satin brass alloy steel builds rust resistant durability\u003cbr\u003e\n✅ Fully mortised design keeps the hinge hidden when closed\u003cbr\u003e\n✅ Riveted pins stay permanently locked against tampering\u003cbr\u003e\n✅ Opens wide to 180 degrees with zero external pinch risks\u003cbr\u003e\n✅ Holds 20 90 or 180 minute UL fire ratings depending on setup\u003cbr\u003e\n✅ Mounts cleanly to 1 to 2 inch thick frames and doors\u003cbr\u003e \u003cp\u003e💡 What makes concealed fire door hinges so handy for modern shop setups?\u003cbr\u003e- Hiding mounting plates behind the frame stops forced entry attempts and keeps sightlines clear for security gear.\u003cbr\u003e- Full mortise cuts lock the hardware inside solid cores for maximum crush resistance during heavy impacts.\u003cbr\u003e- UL tested ratios split the weight evenly along tall panels while locking down strict smoke barriers.\u003cbr\u003e- Single action pivots mesh perfectly with heavy strike plates for reliable cycling without constant tweaking.\u003c\/p\u003e\n✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":67727710945515,"sku":"VXB0084JK3RE","price":623.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71LRo6vuuDL.jpg?v=1791083835","url":"https:\/\/vxb.com\/products\/pro-grade-concealed-fire-rated-hinge-with-non-remo","provider":"VXB Bearings","version":"1.0","type":"link"}