1" x 1/8" N42 Neodymium Disc Magnets – Strong Rare Earth Magnets
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Disc Magnet |
| Grade |
N42 |
| Shape |
Disc |
| Diameter |
1" (25.4 mm) |
| Thickness |
1/8" (0.125" / 3.18 mm) |
| Pull Force |
Over 16 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 |
*Note: Actual pull force may vary depending on the application, contact surface, steel thickness, and mounting method. Testing in your specific application is recommended.
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 16 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 greater magnetic strength than N40, N38, and N35 magnets of the same size. |
| Can it be used outdoors? |
Yes, but additional sealing is recommended for long-term outdoor or humid environments. |
| What is it commonly used for? |
Magnetic fixtures, woodworking, magnetic closures, product assemblies, displays, crafts, and DIY projects. |
Product Overview
These 1" x 1/8" N42 Neodymium Disc Magnets provide an excellent balance of magnetic strength and low-profile design. The 1-inch diameter offers a broad contact surface for dependable holding power, while the 1/8-inch thickness delivers a stronger magnetic field than ultra-thin disc magnets without adding unnecessary bulk.
Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these rare earth magnets provide reliable performance for industrial, commercial, and everyday applications. They are ideal for magnetic fixtures, hidden closures, woodworking, displays, product assemblies, crafts, and countless DIY projects.
Each magnet features a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating that offers outstanding protection against 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 strength in a compact, low-profile shape, making them one of the most versatile magnet styles available.
This magnet is magnetized through its thickness, placing the north and south poles on the two flat circular faces. It is commonly used in manufacturing, woodworking, product assemblies, electronics, magnetic closures, fixtures, and custom projects.
Neodymium magnets are also commonly known as Neo magnets, NdFeB magnets, NIB magnets, or super magnets.
How Strong Is This Magnet?
This 1" x 1/8" N42 disc magnet delivers over 16 pounds of pull force under ideal laboratory conditions using a thick, clean steel surface.
Actual holding force depends on several factors, including:
- Surface material
- Steel thickness
- Contact area
- Air gap
- Mounting method
- Environmental conditions
For maximum holding performance, use this magnet against a clean, flat steel surface.
Note: Pull force values are estimates based on ideal laboratory conditions. Actual performance should always be verified for your intended application.
Technical Specifications
| Specification |
Value |
| Magnet Type |
Neodymium Rare Earth Disc Magnet |
| Grade |
N42 |
| Shape |
Disc |
| Diameter |
1" (25.4 mm) |
| Thickness |
1/8" (0.125" / 3.18 mm) |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Thickness |
| Pull Force |
Over 16 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 for superior durability and corrosion resistance.
Nickel-Copper-Nickel vs. Epoxy Coating
The Nickel-Copper-Nickel triple-layer coating is significantly more durable than a single-layer epoxy coating.
- Greater resistance to scratches and everyday wear
- Better protection against chipping and cracking
- Superior corrosion resistance
- Smooth, polished metallic finish
- Longer service life in demanding applications
Epoxy coatings are typically thinner and can wear through more easily if scratched or exposed to frequent handling.
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 industrial applications |
Disc Magnet Size Comparison
| Size |
Typical Use |
| Small |
Crafts, sensors, lightweight projects |
| 1" x 1/8" |
Fixtures, woodworking, displays, magnetic closures |
| Medium |
Product assemblies and industrial holding |
| Large |
Heavy-duty industrial mounting |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Fixtures, jigs, magnetic assemblies |
| Woodworking |
Hidden catches, cabinet doors, furniture |
| Electronics |
Product assemblies and components |
| Retail |
Displays and signage |
| Education |
STEM projects and demonstrations |
| DIY & Makers |
Home improvement, crafts, custom projects |
Common Questions About This Magnet
What is the pull force?
This magnet provides over 16 pounds of pull force under ideal testing conditions.
Is N42 stronger than N35 magnets?
Yes. N42 delivers significantly greater magnetic strength and holding power than N35 magnets of the same dimensions.
Can this magnet rust?
The Nickel-Copper-Nickel triple-layer coating helps protect against corrosion. If the coating becomes damaged and the magnet is exposed to moisture, corrosion may occur over time.
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 1/8-inch 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 N42 NdFeB rare earth magnets
- ISO-certified quality
- Stronger than N40, N38, and N35 magnets
- 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
