--- product_id: 447134738 title: "6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish" brand: "polar tangro" price: "414 zł" currency: PLN in_stock: true reviews_count: 8 category: "Polar Tangro" url: https://www.desertcart.pl/products/447134738-6-inch-invisible-door-hinges-2-pack-3d-adjustable-hidden store_origin: PL region: Poland --- # 180° silent smooth swing 3D ±3mm vertical & ±2mm horizontal adjustability 88 lbs load capacity 6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish **Brand:** polar tangro **Price:** 414 zł **Availability:** ✅ In Stock ## Summary > 🚪 Elevate your space with invisible strength and silent sophistication ## Quick Answers - **What is this?** 6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish by polar tangro - **How much does it cost?** 414 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/447134738-6-inch-invisible-door-hinges-2-pack-3d-adjustable-hidden) ## Best For - polar tangro enthusiasts ## Why This Product - Trusted polar tangro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heavy-Duty Strength:** Supports up to 88 lbs for robust, secure door operation - • **Whisper-Quiet Swing:** 180° wide opening with friction-reducing copper spacers - • **Seamless Concealment:** Invisible hinge design for a sleek, minimalist aesthetic - • **Precision 3D Adjustment:** Fine-tune door alignment without removal for flawless fit - • **Universal & Easy Install:** Complete kit with reversible hinges and all tools included ## Overview Polar Tangro’s 6 Inch Invisible Door Hinges combine premium zinc and aluminum alloy construction with a heavy-duty 88 lbs load capacity. Featuring advanced 3D adjustability, these concealed hinges allow perfect door alignment without removal. Their 180° wide swing and built-in copper spacers ensure smooth, silent operation. Designed for doors over 35mm thick, the hinges remain completely hidden when closed, delivering a clean, modern look. The reversible design and included installation kit make them ideal for professional-grade home renovations. ## Description Polar Tangro 6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish - desertcart.com Review: Great looking, sturdy high-end door hardware - If you're looking for an application with hidden hinges, these work well and look great. Besides being completely invisible when installed, they look good when exposed with the door open and come with covers to hide the screws. They can handle fairly heavy doors (see specifications). As with lots of high-end hardware, the dimensions are metric. The hinge is 25mm wide, just short of an inch. Installation isn't easy, but it's what is expected from this type of hardware. There are good instructions in the box. Cutting/routing the holes to recess the hinges can be a challenge, as each hole has 2 different depths and curved ends. I would definitely make a template if installing several of these. I did a practice installation on some scrap and would recommend doing one before cutting into an expensive door and frame. If your door jamb is standard 1"x X wood, there may not be much wood left to screw the hinge in, as the recesses are quite deep. The inner recess will go all the way through the jamb. On the jamb side I'd consider replacing the provided screws with longer screws that extend into the framing. The hinges are highly adjustable to change the gap and horizontal and vertical alignment. It may take a bit of practice to get them right, but they give you the hex wrenches in the kit to make the adjustments. If you're want a really tight fit, remember that wood will expand and contract with moisture and temperature, so make appropriate allowances in the fit. Also be aware that due to the width of the hinges, they'll need to be installed indoors 1-3/8" thick or greater. Review: Amazing quality. Great value for the money. - These are just as good as the options that are 3x the money. They are extremely heavy duty and smooth. I'm using them on a hidden bookshelf door that might have a couple hundred pounds on them at any given point. My one knock is on installation. I wasn't expecting it to come with an installation jig or anything. And I know the measurements are in the product listing pictures ....but at a printable template or guidance on a template would be great. As these type of recessed hinges are notoriously difficult to get perfect. Luckily I was able to pull it off without wasting any material. ## Features - PREMIUM ZINC ALLOY CONSTRUCTION - Crafted from high-quality zinc alloy with an aluminum alloy core, these hidden door hinges offer exceptional rust and corrosion resistance. The heavy-duty four-axis structure ensures a stable 88 lbs (40kg) load-bearing capacity for a pair, providing a long-lasting and secure service life for your modern doors - PRECISION 3D ADJUSTABILITY - Our invisible hinges feature advanced three-dimensional adjustability without requiring door removal. Easily fine-tune your door alignment with a vertical range of ±3.0mm, horizontal ±2.0mm, and depth ±1.0mm, allowing for a perfect, gap-free installation every time - 180° WIDE SWING & SILENT OPERATION - Enjoy a maximum opening angle of 180 degrees, perfect for maximizing ventilation and natural lighting in your room. Integrated built-in copper spacers effectively reduce friction, ensuring a whisper-quiet opening and closing experience while preventing wear over time - SEAMLESS CONCEALED DESIGN - Measuring 6 x 2.5 x 1 inches, these concealed hinges are designed for doors over 35mm thick and up to 850mm wide. When closed, the hinges are completely hidden, allowing your door to blend seamlessly with surrounding walls or cabinets for a clean, minimalist aesthetic - EASY UNIVERSAL INSTALLATION - This complete kit includes 2 hinges, 16 reinforced screws, and a set of hex wrenches (4mm, 3mm, 2.5mm) for a hassle-free setup . The reversible design works for both left and right-handed, inward or outward swinging doors, making it the ideal choice for modern home renovations ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09ZL2G6MD | | Best Sellers Rank | #221,408 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #902 in Door Hinges | | Brand Name | Polar Tangro | | Color | Silver - 2pcs | | Customer Reviews | 4.2 4.2 out of 5 stars (43) | | Finish Types | Unfinished | | Hole Count | 2 | | Item Dimensions L x W | 6.88"L x 2.75"W | | Manufacturer | Polar Tangro | | Manufacturer Part Number | TOLHO-6HidHing-2 | | Material Type | Aluminum, Zinc | | Maximum Weight Capacity | 88 Pounds | | Model Number | TOLHO-6HidHing-2 | | Mounting Type | Door Mount | ## Product Details - **Brand:** Polar Tangro - **Color:** Silver - 2pcs - **Finish Type:** Unfinished - **Hole Count:** 2 - **Manufacturer:** Polar Tangro - **Material:** Aluminum, Zinc - **Mounting Type:** Door Mount - **Product Dimensions:** 6.88"L x 2.75"W - **Weight Limit:** 88 Pounds ## Images ![6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish - Image 1](https://m.media-amazon.com/images/I/81bJPB6kmFL.jpg) ![6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish - Image 2](https://m.media-amazon.com/images/I/81PRvJt0PvL.jpg) ![6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish - Image 3](https://m.media-amazon.com/images/I/810t1eR+csL.jpg) ![6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish - Image 4](https://m.media-amazon.com/images/I/81SB7gIfIcL.jpg) ![6 Inch Invisible Door Hinges (2 Pack), 3D Adjustable Hidden Door Hinges for Doors, 180 Degree Swing Heavy-Duty Zinc Alloy Concealed Hinge, 88 lbs Load-Bearing, Brushed Silver Finish - Image 5](https://m.media-amazon.com/images/I/81onErS-D6L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Do they come with instructions and templates?** A: Our product page has a picture of installation instructions, the product also includes installation instructions **Q: Can these hinges be used with a hollow core door?** A: I'm not an expert but given the weight of the hinge and the placement, you would have to find a way to mount a block inside the hollow core which seems like it would be a ton of work unless you were building a hollow core door or rebuilding it and had access to mount it to the interior of the door edge. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great looking, sturdy high-end door hardware *by D***R on November 13, 2023* If you're looking for an application with hidden hinges, these work well and look great. Besides being completely invisible when installed, they look good when exposed with the door open and come with covers to hide the screws. They can handle fairly heavy doors (see specifications). As with lots of high-end hardware, the dimensions are metric. The hinge is 25mm wide, just short of an inch. Installation isn't easy, but it's what is expected from this type of hardware. There are good instructions in the box. Cutting/routing the holes to recess the hinges can be a challenge, as each hole has 2 different depths and curved ends. I would definitely make a template if installing several of these. I did a practice installation on some scrap and would recommend doing one before cutting into an expensive door and frame. If your door jamb is standard 1"x X wood, there may not be much wood left to screw the hinge in, as the recesses are quite deep. The inner recess will go all the way through the jamb. On the jamb side I'd consider replacing the provided screws with longer screws that extend into the framing. The hinges are highly adjustable to change the gap and horizontal and vertical alignment. It may take a bit of practice to get them right, but they give you the hex wrenches in the kit to make the adjustments. If you're want a really tight fit, remember that wood will expand and contract with moisture and temperature, so make appropriate allowances in the fit. Also be aware that due to the width of the hinges, they'll need to be installed indoors 1-3/8" thick or greater. ### ⭐⭐⭐⭐⭐ Amazing quality. Great value for the money. *by J***R on December 12, 2023* These are just as good as the options that are 3x the money. They are extremely heavy duty and smooth. I'm using them on a hidden bookshelf door that might have a couple hundred pounds on them at any given point. My one knock is on installation. I wasn't expecting it to come with an installation jig or anything. And I know the measurements are in the product listing pictures ....but at a printable template or guidance on a template would be great. As these type of recessed hinges are notoriously difficult to get perfect. Luckily I was able to pull it off without wasting any material. ### ⭐⭐⭐⭐⭐ I Love These Hinges! *by E***R on November 23, 2023* This pair of hinges are call invisible because when the door is closed you can't see them at all. They have to be mortised in to install and that take precision measurements and marking skills as well as specific tools. They are very strong and good looking. ## Frequently Bought Together - Invisible Door Hinges (2 pcs) -6 Inch Sliver Hidden Hinges for Doors, 3 Way Adjustable & 180 Deg Swing Invisible Hinge, Heavy-Duty Zinc Alloy Concealed Door Hinges 88Lbs Load-Bearing - Precision Lock PLS-24 PRO Concealed Magnetic Catch, Silver - NHN1628U-M Concealed Door Closer, Non-Handed, Heavy-Duty, Up to 88lbs. Doors, Non-Compatible with Larson Door, Dual Speed Control, Invisible Door Closer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/447134738-6-inch-invisible-door-hinges-2-pack-3d-adjustable-hidden](https://www.desertcart.pl/products/447134738-6-inch-invisible-door-hinges-2-pack-3d-adjustable-hidden) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-30*