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N42 Neodymium Disc Magnet 1/4" x 1/8" Rare Earth Magnet

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Disc Magnet
Grade N42
Shape Disc
Diameter 1/4 inch (0.250")
Thickness 1/8 inch (0.125")
Pull Force Approx. 3.3 lbs or more
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Through Thickness
Br Max 13,200 Gauss
Certification ISO Certified

Quick Answers

Question Answer
How strong is this magnet? Approximately 3.3 lbs or more of pull force under ideal conditions.
What is this magnet made of? NdFeB (Neodymium-Iron-Boron) rare earth material.
Is this stronger than N35 magnets? Yes. N42 magnets provide greater magnetic strength than N35, N38, and N40 magnets of the same dimensions.
Can it be used outdoors? Yes. The Nickel-Copper-Nickel coating provides excellent corrosion resistance, although additional sealing is recommended for long-term outdoor or marine environments.
What is it commonly used for? Magnetic closures, woodworking, crafts, displays, organization, electronics, DIY projects, and embedded magnetic mounts.

Product Overview

The N42 Neodymium Disc Magnet 1/4" x 1/8" offers dependable magnetic performance in a compact and versatile size. With a 1/4-inch diameter and a thicker 1/8-inch profile, this rare earth disc magnet provides greater holding power than thinner disc magnets while maintaining a small footprint that fits easily into a wide variety of projects.

Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these magnets deliver reliable magnetic strength for everyday industrial, commercial, and hobby applications. The increased thickness creates a deeper magnetic field, making these magnets an excellent choice for woodworking, magnetic closures, displays, fixtures, electronics, and embedded installations where a stronger hold is required.

Each magnet is protected by a durable Nickel-Copper-Nickel triple-layer coating that helps resist corrosion while providing a smooth, polished finish. Whether you're building custom products, organizing tools, or creating magnetic fixtures, these compact N42 disc magnets provide consistent, long-lasting performance.


What Is a Neodymium Disc Magnet?

A neodymium disc magnet is a circular permanent magnet manufactured from neodymium, iron, and boron (NdFeB). Known for offering the highest magnetic strength relative to size, neodymium disc magnets are widely used throughout manufacturing, engineering, electronics, woodworking, retail displays, and consumer products.

Their flat profile and high magnetic energy make them ideal for magnetic closures, embedded installations, holding fixtures, sensors, and precision assemblies where compact dimensions are important.


How Strong Is This Magnet?

This N42 neodymium disc magnet produces approximately 3.3 pounds or more of pull force under ideal conditions against a thick, flat steel surface. Its 1/8-inch thickness provides a deeper magnetic field than thinner disc magnets, resulting in stronger holding performance while maintaining a compact diameter.

The premium N42 magnetic grade delivers significantly greater strength than standard N35 magnets, making it an excellent balance of performance, size, and value for a wide variety of applications.


Technical Specifications

Property Specification
Material Neodymium (NdFeB)
Grade N42
Shape Disc
Diameter 0.250 inch (1/4")
Thickness 0.125 inch (1/8")
Br Max 13,200 Gauss
Pull Force Approx. 3.3 lbs or more
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Through Thickness
Certification ISO Certified

Magnet Grade Comparison

Grade Relative Strength Typical Applications
N35 Standard General purpose
N38 Moderate Consumer products
N40 High Industrial
N42 Higher Engineering, woodworking, electronics
N52 Maximum High-performance applications

Disc Magnet Size Comparison

Size Typical Use
Small Crafts & sensors
Medium General holding
Large Industrial mounting

Applications by Industry

Industry Common Uses
Manufacturing Fixtures, jigs, positioning tools
Robotics Sensors & positioning systems
Electronics Components, enclosures, magnetic switches
Education STEM projects and classroom demonstrations
DIY Crafts, woodworking, home organization, models

Common Questions About This Magnet

What is the pull force?

This magnet provides approximately 3.3 pounds or more of pull force under ideal conditions against a thick steel surface.

Is N42 stronger than N35?

Yes. N42 provides noticeably greater magnetic strength than N35 magnets of the same size, making it a popular choice for engineering and industrial applications.

Can it rust?

Like all neodymium magnets, the core material can corrode if exposed. The Nickel-Copper-Nickel triple-layer coating provides excellent protection against moisture, oxidation, and everyday wear.

Can it be used outdoors?

Yes. For continuous outdoor or marine environments, additional sealing is recommended to maximize service life.

What direction is it magnetized?

This magnet is magnetized through its thickness, meaning the north and south poles are located on the two flat circular faces.

Do you offer bulk discounts?

Yes. Super Magnet Store offers competitive wholesale pricing and quantity discounts for manufacturers, distributors, educational institutions, retailers, and OEM customers.


Why Buy From Super Magnet Store?

  • Premium NdFeB rare earth magnets

  • ISO-certified quality

  • Consistent magnetic performance

  • Precision manufacturing tolerances

  • Durable Nickel-Copper-Nickel triple coating

  • Competitive wholesale pricing

  • Bulk discounts available

  • Fast shipping from a trusted magnet supplier

Frequently Bought Together

Total price$ 82.18

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    • 5 stars: 24 (75%)
    • 4 stars: 2 (6%)
    • 3 stars: 2 (6%)
    • 2 stars: 0 (0%)
    • 1 star: 4 (13%)
    b
    bap
    Mighty strong magnets

    They are small but hecka strong hold.They will work great for many items you might have.

    b
    bap
    Mighty strong magnets

    They are small but hecka strong hold.They will work great for many items you might have.

    A
    Avocado
    Very strong magnets

    These neodymium magnets are very strong. These magnets are reliable, durable and versatile. We used them to anchor small pieces of object onto the various metal surfaces. If you are looking for small, powerful magnets, these magnets are perfect. Overall, they work really well for me.

    A
    Avocado
    Very strong magnets

    These neodymium magnets are very strong. These magnets are reliable, durable and versatile. We used them to anchor small pieces of object onto the various metal surfaces. If you are looking for small, powerful magnets, these magnets are perfect. Overall, they work really well for me.

    S
    Sahil
    Strong magnets that work

    Super strong. Just a bit bigger than the other magnets I was replacing in the exact same size (supposedly) don’t know which one was off but made some modifications and they work.

    S
    Sahil
    Strong magnets that work

    Super strong. Just a bit bigger than the other magnets I was replacing in the exact same size (supposedly) don’t know which one was off but made some modifications and they work.

    F
    F. C.
    POWERFUL!

    Wow - these little magnets are POWERFUL!

    F
    F. C.
    POWERFUL!

    Wow - these little magnets are POWERFUL!

    A
    Awesome
    Nice

    Quite small but perfect for what I need. Thank you

    A
    Awesome
    Nice

    Quite small but perfect for what I need. Thank you

    K
    Kindle Customer
    Small strong magnets

    for the size they are very strong, surprisingly strong

    K
    Kindle Customer
    Small strong magnets

    for the size they are very strong, surprisingly strong

    B
    Brian
    Weak

    These used to be my go-to for my items I'm selling and the hold was excellent. New batch is a lot weaker than before along with a "made in China" label. Won't be buying these from here on out.

    B
    Brian
    Weak

    These used to be my go-to for my items I'm selling and the hold was excellent. New batch is a lot weaker than before along with a "made in China" label. Won't be buying these from here on out.

    A
    Agius
    Slightly larger than advertised

    Slightly larger than advertised

    A
    Agius
    Slightly larger than advertised

    Slightly larger than advertised

    E
    Evan
    Got what I wanted

    Fairly priced. Decently strong. Just what I needed

    E
    Evan
    Got what I wanted

    Fairly priced. Decently strong. Just what I needed

    D
    Dustin W.
    Strong magnets

    Exactly what I needed to repair a magnetic safety switch. Very strong little magnets

    E
    Elaine Carr
    Perfect Size!

    These little magnets were just what was needed for my polymer clay magnets. They are very strong and if you need a small magnet to do the job, I recommend these. They are strong and require patience to separate them. However, they served my purpose perfectly!

    D
    Dustin W.
    Strong magnets

    Exactly what I needed to repair a magnetic safety switch. Very strong little magnets

    E
    Elaine Carr
    Perfect Size!

    These little magnets were just what was needed for my polymer clay magnets. They are very strong and if you need a small magnet to do the job, I recommend these. They are strong and require patience to separate them. However, they served my purpose perfectly!

    N
    Nathan Swift
    Nice little magnets

    Tiny magnets with strong hold, these are great for small projects.

    N
    Nathan Swift
    Nice little magnets

    Tiny magnets with strong hold, these are great for small projects.

    K
    Kristie M. Cayton
    Wow super strong

    These magnets were extremely strong and worked out great for a project I was making

    K
    Kristie M. Cayton
    Wow super strong

    These magnets were extremely strong and worked out great for a project I was making

    g
    george
    Great

    great

    g
    george
    Great

    great

    B
    Bruce Dell
    Good magnets

    Magnets are exactly what I needed. Very strong.

    B
    Bruce Dell
    Good magnets

    Magnets are exactly what I needed. Very strong.

    H
    Hatchet605
    Does what they are supposed to do

    I use these in several 3D printing projects and they hold really well. Price per peice is really good as well.

    H
    Hatchet605
    Does what they are supposed to do

    I use these in several 3D printing projects and they hold really well. Price per peice is really good as well.