3/4" x 1/16" N42 Neodymium Disc Magnets – Strong Rare Earth Magnets
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Disc Magnet |
| Grade |
N42 |
| Shape |
Disc |
| Diameter |
3/4" (0.750" / 19.05 mm) |
| Thickness |
1/16" (0.0625" / 1.59 mm) |
| Pull Force |
Over 5.5 lbs |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer |
| Magnetization |
Through Thickness |
| Br Max |
13,200 Gauss |
| Certification |
ISO Certified |
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 5.5 lbs of pull force under ideal conditions. |
| What is this magnet made of? |
NdFeB (Neodymium-Iron-Boron) rare earth material. |
| Is N42 stronger than N35 magnets? |
Yes. N42 provides significantly greater magnetic strength than N35, N38, and N40 magnets of the same size. |
| Can it be used outdoors? |
Yes, but additional sealing is recommended for long-term outdoor exposure or humid environments. |
| What is it commonly used for? |
Magnetic signs, displays, crafts, woodworking, magnetic closures, light-duty fixtures, and DIY projects. |
Product Overview
These 3/4" x 1/16" N42 Neodymium Disc Magnets are designed for applications requiring a wide magnetic contact area in an ultra-thin profile. The 3/4-inch diameter provides excellent surface coverage and holding power, while the slim 1/16-inch thickness allows the magnet to sit nearly flush when embedded into wood, plastic, acrylic, or other materials.
Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these magnets deliver dependable magnetic performance while remaining lightweight and easy to install. They're an excellent choice for magnetic closures, signage, displays, woodworking, crafts, product assemblies, and custom DIY projects.
Each magnet features a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating that provides outstanding resistance to corrosion, scratches, and chipping while maintaining a smooth, polished metallic finish.
What Is a Neodymium Disc Magnet?
A neodymium disc magnet is a permanent magnet manufactured from NdFeB (Neodymium-Iron-Boron), the strongest commercially available magnetic material. Disc magnets provide exceptional magnetic force while maintaining a compact, low-profile design, making them one of the most versatile magnet shapes available.
These magnets are magnetized through their thickness, placing the north and south poles on the two flat circular faces. This design provides maximum holding force for magnetic closures, fixtures, displays, sensors, woodworking, electronics, and countless industrial and DIY applications.
Neodymium magnets are also commonly known as Neo magnets, NdFeB magnets, NIB magnets, or super magnets.
How Strong Is This Magnet?
This 3/4" x 1/16" N42 disc magnet provides over 5.5 pounds of pull force under ideal testing conditions using a thick, clean steel surface.
Although extremely thin, the large 3/4-inch diameter provides an excellent contact area that helps maximize holding performance for lightweight to medium-duty applications.
Actual pull force depends on:
- Surface material
- Steel thickness
- Contact area
- Air gap
- Mounting method
- Environmental conditions
Note: Pull force values are estimates based on ideal laboratory conditions. Actual performance should always be verified in your intended application.
Technical Specifications
| Specification |
Value |
| Magnet Type |
Neodymium Rare Earth Disc Magnet |
| Grade |
N42 |
| Shape |
Disc |
| Diameter |
3/4" (0.750" / 19.05 mm) |
| Thickness |
1/16" (0.0625" / 1.59 mm) |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Thickness |
| Pull Force |
Over 5.5 lbs |
| Br Max |
13,200 Gauss |
| Certification |
ISO Certified |
Nickel-Copper-Nickel Triple-Layer Coating
Every magnet features a Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating that provides superior durability and corrosion resistance.
Benefits
- Excellent scratch resistance
- Superior protection against chipping and cracking
- Outstanding corrosion resistance
- Smooth, polished metallic finish
- Long-lasting durability for industrial, commercial, and everyday use
Magnet Grade Comparison
| Grade |
Relative Strength |
Typical Applications |
| N35 |
Standard |
General-purpose magnets |
| N38 |
Moderate |
Consumer products |
| N40 |
High |
Industrial applications |
| N42 |
Higher |
Engineering, manufacturing, woodworking |
| N52 |
Maximum |
High-performance applications |
Disc Magnet Size Comparison
| Size |
Typical Use |
| Small |
Crafts, sensors, miniature electronics |
| 3/4" x 1/16" |
Magnetic signs, displays, closures, woodworking, crafts |
| Medium |
General holding and fixtures |
| Large |
Industrial mounting and fabrication |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Fixtures, jigs, magnetic assemblies |
| Retail & Displays |
Signs, display panels, promotional products |
| Woodworking |
Hidden magnetic mounts and closures |
| Education |
STEM projects and demonstrations |
| Electronics |
Components and magnetic assemblies |
| DIY & Makers |
Crafts, home improvement, custom projects |
Common Questions About This Magnet
What is the pull force?
This magnet provides over 5.5 pounds of pull force under ideal testing conditions.
Is N42 stronger than N35 magnets?
Yes. N42 offers significantly greater magnetic strength and holding power than N35 magnets of the same size.
Can this magnet rust?
Like all neodymium magnets, it contains iron and may corrode if the protective coating becomes damaged or exposed to moisture for extended periods.
Can it be used outdoors?
Yes. However, additional sealing is recommended for long-term outdoor or marine applications.
What direction is it magnetized?
This magnet is magnetized through its thickness, with the north and south poles located on the two flat circular faces.
Do you offer bulk discounts?
Yes. Contact Super Magnet Store for wholesale pricing and volume discounts on large quantity orders.
Why Buy From Super Magnet Store?
- Premium NdFeB rare earth magnets
- ISO-certified quality
- High-strength N42 grade
- Durable Nickel-Copper-Nickel triple-layer coating
- Excellent corrosion resistance
- Consistent magnetic performance
- Precision manufacturing for reliable results
- Competitive wholesale pricing
- Bulk discounts available
- Trusted by manufacturers, engineers, educators, and DIY makers worldwide
