---
product_id: 447134738
title: "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"
brand: "polar tangro"
price: "KD 25.70"
currency: KWD
in_stock: true
reviews_count: 8
category: "Polar Tangro"
url: https://www.desertcart.com.kw/products/447134738-polar-tangro-6-inch-invisible-door-hinges-2-pack-3d
store_origin: KW
region: Kuwait
---

# 180° silent smooth swing 3D ±3mm vertical & ±2mm horizontal adjustability 88 lbs load capacity 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

**Brand:** polar tangro
**Price:** KD 25.70
**Availability:** ✅ In Stock

## Summary

> 🚪 Elevate your space with invisible strength and flawless style!

## Quick Answers

- **What is this?** 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 by polar tangro
- **How much does it cost?** KD 25.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/447134738-polar-tangro-6-inch-invisible-door-hinges-2-pack-3d)

## 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 per pair for robust, secure door operation.
- • **Whisper-Quiet Swing:** 180° wide opening with friction-reducing copper spacers for silent use.
- • **Seamless Concealment:** Completely hidden hinges create a sleek, minimalist door aesthetic.
- • **Precision 3D Adjustment:** Fine-tune door alignment effortlessly without removal for a flawless fit.
- • **Universal & Ready-to-Install:** Includes screws and hex wrenches; reversible for any door orientation.

## Overview

Polar Tangro’s 6 Inch Invisible Door Hinges combine premium zinc alloy durability with advanced 3D adjustability, supporting doors up to 88 lbs. Their concealed design ensures a clean, modern look while enabling a smooth, silent 180° swing. Ideal for professional-grade installations, these hinges come with all necessary hardware for versatile, hassle-free setup.

## 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 |
|---------------|-------|
| Brand | Polar Tangro |
| Finish Type | Unfinished |
| Hole Count | 2 |
| Material | Aluminum, Zinc |
| Mounting Type | Door Mount |
| Product Dimensions | 6.88"L x 2.75"W |

## 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

![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 - Image 1](https://m.media-amazon.com/images/I/810t1eR+csL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/81PRvJt0PvL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/81SB7gIfIcL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/81bJPB6kmFL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/81ehSK7hU9L.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.

### ⭐⭐⭐⭐ Difficult install but works
*by D***S on November 23, 2023*

Hard to install if you have not clue what to do but I built a frame as a hideaway door and it wasn't under the best circumstances. But the door I built weights 70-80 lbs and it's holding.

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-07*