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SKU: ND064-7

N45 Neodymium Magnets 1.25 in x 1/4 in Disk w/Dual Sided Countersunk Hole

$ 9.99
$ 9.99

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1.25" x 1/4" N45 Neodymium Disc Magnet with Dual Countersunk Hole – Rare Earth Mounting Magnet

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Disc Magnet
Grade N45
Shape Disc with Dual-Sided Countersunk Center Hole
Diameter 1.25" (31.75 mm)
Thickness 1/4" (0.250" / 6.35 mm)
Pull Force Approximately 32 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**
Countersunk Hole Dual-Sided, 0.36" × 0.18", 90° Taper (#8 Flat Head Screws)
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.

**Note: The original specifications list Grade N45 with a Br Max of 13,200 gauss. Br Max values around 13,200 gauss are more commonly associated with N42 magnets. This specification reflects the values you provided.

Quick Answers

Question Answer
How strong is this magnet? Approximately 32 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. N45 provides greater magnetic strength than N42, N40, N38, and N35 magnets.
Can it be used outdoors? Yes, but additional sealing is recommended for long-term outdoor or marine environments.
What is it commonly used for? Flush-mounted fixtures, cabinetry, signage, woodworking, machinery, industrial equipment, and custom magnetic mounting systems.

Product Overview

These 1.25" x 1/4" N45 Neodymium Disc Magnets with Dual Countersunk Center Hole are designed for applications requiring powerful magnetic holding force and clean, flush screw mounting. Featuring dual-sided 90° countersunk holes (0.36" × 0.18") for #8 flat head screws, the magnet can be installed from either side while allowing the screw head to sit flush with the magnet's surface.

Manufactured from premium N45 grade NdFeB (Neodymium-Iron-Boron), this magnet delivers approximately 32 pounds of pull force under ideal conditions while offering stronger magnetic performance than N42, N40, N38, and N35 grades. It is an excellent choice for cabinetry, tool holders, wall-mounted fixtures, machinery, magnetic latches, retail displays, and custom engineering projects.

A durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating provides excellent protection against corrosion, scratches, and everyday wear. Manufactured in ISO-certified facilities, these magnets deliver consistent performance and dependable quality.

What Is a Neodymium Disc Magnet?

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

This magnet is magnetized through its 1/4-inch thickness (axially magnetized), placing the north and south poles on the two flat circular faces. The dual-sided countersunk center hole allows for secure mechanical fastening while maintaining a flush installation.

How Strong Is This Magnet?

This 1.25" x 1/4" N45 countersunk disc magnet produces approximately 32 pounds of pull force under ideal laboratory conditions using a thick, clean steel surface.

Actual holding force depends on:

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

For maximum performance, mount the magnet securely against a clean, flat steel surface.

Technical Specifications

Specification Value
Magnet Type Neodymium Rare Earth Disc Magnet
Grade N45
Shape Disc with Dual Countersunk Hole
Diameter 1.25" (31.75 mm)
Thickness 1/4" (6.35 mm)
Countersunk Hole Dual-Sided, 0.36" × 0.18", 90° Taper
Compatible Screws #8 Flat Head
Pull Force Approximately 32 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
N45 Very High Industrial mounting and fixtures
N52 Maximum High-performance

Disc Magnet Size Comparison

Size Typical Use
Small Crafts & sensors
Medium General holding
Large (1.25" × 1/4") Flush-mounted fixtures, cabinetry, industrial mounting

Applications by Industry

Industry Common Uses
Manufacturing Fixtures & jigs
Woodworking Cabinet doors & hidden fasteners
Robotics Mounting systems
Retail Display fixtures
Industrial Equipment mounting
DIY Tool holders & custom projects

Common Questions About This Magnet

What is the pull force?

Approximately 32 pounds under ideal testing conditions.

Is N45 stronger than N35 magnets?

Yes. N45 offers significantly greater magnetic strength than N35 magnets of the same dimensions.

Can it rust?

The Nickel-Copper-Nickel triple-layer coating provides excellent corrosion resistance. Avoid damaging the coating for maximum longevity.

Can it be used outdoors?

Yes, although additional sealing is recommended for prolonged outdoor or marine exposure.

What direction is it magnetized?

This magnet is axially magnetized through its 1/4-inch thickness, with the magnetic poles on the two flat faces.

Do you offer bulk discounts?

Yes. Contact Super Magnet Store for wholesale pricing and volume discounts.

Why Buy From Super Magnet Store?

  • Premium NdFeB magnets
  • ISO-certified quality
  • High-performance N45 magnetic grade
  • Precision-machined dual-sided countersunk hole
  • Durable Nickel-Copper-Nickel triple-layer coating
  • Consistent magnetic performance
  • Bulk discounts available
  • Fast shipping
  • Trusted by manufacturers, engineers, educators, and DIY professionals


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