Will this allow a door to swing both ways like a saloon door?

Nope, mounting dictates which way it swings.

Are they inward or outward swinging hinges?

They are 90 degree, so you can use them as you need, inward or outward. just keep in mind the space you have.

What are the cutout instructions or does int come with a cutout pattern?

Mine did not come out with cut out instructions or a pattern. However it was not too hard to trace the outline of the hinge onto my door.

What is the material of construction? Are these appropriate for outdoor use?

seems to me like a cast aluminum. Not sure what the ratios may be to obtain a 40 lb hinge.

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Invisible Hinges Concealed Door Hinge Heavy Duty Hidden Hinge 3-D Adjustable - Black -1 Pair

Invisible Hinges Concealed Door Hinge Heavy Duty Hidden Hinge 3-D Adjustable - Black -1 Pair

Product ID: 632004872

Details

Brand
Alamic
Colour
6"_Black_2
Finish Type
Black
Hole Count
8
Manufacturer
Alamic
Material
Metal

💪Supports up to 88 lbs per 2 hinges

🖤Sleek black finish for modern aesthetics

⚙️3-D adjustability ±3mm/±2mm/±1mm

Description

🖤 Elevate your door game with invisible strength and sleek precision!

WIDE COMPATIBILITY - Fits doors 35mm thick and up to 850mm wide, perfect for contemporary residential and office setups.
HEAVY DUTY STRENGTH - Engineered to support doors up to 88 lbs, ensuring durability and reliability in high-traffic spaces.
SEAMLESS CONCEALMENT - Invisible design hides all screws, delivering a clean, minimalist look that elevates any interior.
PRECISION 3 D ADJUSTMENT - Fine-tune vertical, horizontal, and depth alignment effortlessly for a flawless door fit.
COMPLETE INSTALLATION KIT - Includes mounting screws and adjustment tools for a professional finish without extra trips to the hardware store.

The Alamic Invisible Hinges are heavy-duty, 3-D adjustable concealed door hinges finished in matte black. Supporting up to 88 lbs per pair and allowing 180° door opening, they fit doors between 35mm thickness and 850mm width. Designed for a clean, screw-free appearance, they come with all necessary mounting hardware and adjustment tools for precise installation.

Specifications

ASIN	B07SF612BQ
Brand	Alamic
Brand Name	Alamic
Customer Reviews	4.4 out of 5 stars 151 Reviews
Finish Type	Black
Hole Count	8
Item Dimensions L x W	15L x 6.4W Centimeters
Manufacturer	Alamic
Material	Metal
Material Type	Metal
Maximum Weight Capacity	88 Pounds
Model Number	SDW3DCH04
Mounting Type	Door Mount
Product Dimensions	15L x 6.4W Centimeters
Product Finish Type	Black

Reviews

R**N

Great adjustable hinges for new door projects.

4.03.2021

A**R

Have to research to install

10.04.2021

R**E

Watch your dimensions

4.10.2020

A**R

Great, but plan for install

27.05.2021

C**A

Buena calidad

Buenas bisagras

22.06.2025

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Good experience, but the tracking updates could be better.

2 months ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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