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SKU: ND056

1 x 3/16 inch Rare Earth Neodymium Disc Magnets N42

$ 4.59
$ 4.59

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1" x 3/16" N42 Neodymium Disc Magnets – Strong Rare Earth Magnets

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Disc Magnet
Grade N42
Shape Disc
Diameter 1" (25.4 mm)
Thickness 3/16" (0.1875" / 4.76 mm)
Pull Force Approximately 25 lbs*
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer
Magnetization Through Thickness (Axially Magnetized)
Br Max 13,200 Gauss
Certification ISO Certified

*Note: Actual pull force may vary depending on the application, contact surface, steel thickness, air gap, and mounting method. Testing in your specific application is recommended.

Quick Answers

Question Answer
How strong is this magnet? Approximately 25 lbs 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 provides significantly 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 marine environments.
What is it commonly used for? Magnetic fixtures, cabinet latches, woodworking, product assemblies, robotics, engineering projects, and DIY applications.

Product Overview

These 1" x 3/16" N42 Neodymium Disc Magnets offer an excellent combination of compact size and powerful holding force. The 1-inch diameter provides generous magnetic surface contact, while the 3/16-inch thickness increases magnetic strength over thinner discs of the same diameter, delivering approximately 25 pounds of pull force under ideal conditions. Their versatile size makes them suitable for both commercial and hobby applications where dependable holding power is required.

Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these magnets provide greater magnetic performance than N40, N38, and N35 grades. They are commonly used in woodworking, magnetic closures, product displays, industrial fixtures, automation equipment, engineering prototypes, workshop organization, and custom fabrication projects.

Each magnet is protected by a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating, providing excellent resistance to corrosion, scratches, and chipping while maintaining a smooth, polished finish. Manufactured in ISO-certified facilities, these magnets deliver consistent quality and reliable long-term performance.

What Is a Neodymium Disc Magnet?

A neodymium disc magnet is a permanent NdFeB (Neodymium-Iron-Boron) magnet manufactured from an alloy of neodymium, iron, and boron. Neodymium magnets are the strongest commercially available permanent magnets and are widely used in manufacturing, electronics, woodworking, robotics, engineering, scientific equipment, and countless consumer products.

This magnet is magnetized through its 3/16-inch thickness (axially magnetized), placing the north and south poles on the two flat circular faces. This orientation provides maximum holding force against steel surfaces while maintaining a compact, easy-to-install design.

Neodymium magnets are also commonly known as Neo magnets, NdFeB magnets, NIB magnets, or super magnets.

How Strong Is This Magnet?

This 1" x 3/16" N42 disc magnet delivers approximately 25 pounds of pull force under ideal laboratory conditions using a thick, clean steel plate.

Actual holding force depends on several factors, including:

  • Surface material
  • Steel thickness
  • Contact area
  • Air gap
  • Mounting method
  • Environmental conditions

The increased thickness compared to thinner disc magnets produces a stronger magnetic field and improved holding power while maintaining a compact footprint.

Note: Pull force values are measured under 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 3/16" (4.76 mm)
Pull Force Approximately 25 lbs*
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Through Thickness (Axially Magnetized)
Br Max 13,200 Gauss
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
N52 Maximum High-performance

Disc Magnet Size Comparison

Size Typical Use
Small Crafts & sensors
Medium (1" × 3/16") General holding, magnetic closures, fixtures
Large Industrial mounting

Applications by Industry

Industry Common Uses
Manufacturing Fixtures & jigs
Robotics Positioning & automation
Electronics Components & assemblies
Woodworking Cabinet closures & hidden mounts
Education STEM projects
DIY Home improvement & custom builds

Common Questions About This Magnet

What is the pull force?

This magnet provides approximately 25 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 it rust?

The Nickel-Copper-Nickel triple-layer coating provides excellent protection against corrosion. If the coating becomes damaged and moisture reaches the magnet, corrosion may eventually occur.

Can it be used outdoors?

Yes. However, additional sealing is recommended for prolonged outdoor exposure, marine environments, or high-humidity conditions.

What direction is it magnetized?

This magnet is magnetized through its 3/16-inch thickness (axially magnetized), 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 OEM, industrial, educational, and reseller orders.

Why Buy From Super Magnet Store?

  • Premium NdFeB rare earth magnets
  • ISO-certified quality
  • High-performance N42 magnetic grade
  • Durable Nickel-Copper-Nickel triple-layer coating
  • Consistent magnetic strength and performance
  • Excellent corrosion resistance
  • Precision manufacturing
  • Competitive pricing
  • Bulk discounts available
  • Fast shipping
  • Trusted by manufacturers, engineers, educators, businesses, and DIY enthusiasts worldwide


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