•

SKU: ND050-H52

Extremely Powerful N52 Neodymium Disc Magnets 7/8 in x 1/8 in w/ #8 Countersunk Hole

$ 3.15
$ 3.15

∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors ∼ Top Grade Materials Only ∼ Quality You Can Trust ∼ Trusted By Thousands Of Vendors

7/8" x 1/8" N52 Countersunk Neodymium Disc Magnets – Rare Earth Magnets for #8 Flat Head Screws

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Countersunk Disc Magnet
Grade N52
Shape Disc with Countersunk Center Hole
Diameter 7/8" (0.875" / 22.23 mm)
Thickness 1/8" (0.125" / 3.18 mm)
Countersunk Hole 0.355" x 0.195", 82°
Compatible Screw #8 Flat Head Screw
Pull Force Over 17 lbs*
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer
Magnetization Through Thickness
Br Max 14,800 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 17 lbs of pull force under ideal conditions.
What is this magnet made of? NdFeB (Neodymium-Iron-Boron) rare earth material.
Is N52 stronger than N42 magnets? Yes. N52 is the highest commercially available neodymium grade and provides greater magnetic strength than N50, N48, N45, N42, N40, N38, and N35 magnets.
Can it be used outdoors? Yes, but additional sealing is recommended for long-term outdoor or humid environments.
What is it commonly used for? Cabinet doors, woodworking, magnetic fixtures, displays, equipment mounting, industrial projects, and DIY applications.

Product Overview

These 7/8" x 1/8" N52 Countersunk Neodymium Disc Magnets combine maximum magnetic strength with the convenience of mechanical mounting. The 7/8-inch diameter provides a broad contact surface for reliable holding power, while the slim 1/8-inch thickness allows for low-profile installations where space is limited.

Each magnet features a precision-machined 0.355" x 0.195" 82° countersunk center hole designed to fit a #8 flat head screw, making installation quick and secure. Manufactured from premium N52 grade NdFeB (Neodymium-Iron-Boron), these magnets deliver the highest commercially available magnetic performance, making them ideal for woodworking, cabinetry, industrial fixtures, displays, magnetic latches, and custom fabrication.

A durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating protects each magnet against corrosion, scratches, and chipping while maintaining a smooth, polished finish.

What Is a Countersunk Neodymium Disc Magnet?

A countersunk neodymium disc magnet is a permanent NdFeB (Neodymium-Iron-Boron) magnet with a precision-machined center hole designed to accept a flat head screw. This allows the magnet to be securely fastened to wood, metal, plastic, or other materials without adhesives.

This magnet is magnetized through its 1/8-inch thickness, placing the north and south poles on the two flat circular faces. Countersunk disc magnets are widely used for permanent installations where both strong magnetic performance and secure mounting are required.

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

How Strong Is This Magnet?

This 7/8" x 1/8" N52 countersunk disc magnet delivers over 17 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, mount the magnet securely and use it against a clean, flat steel surface.

Note: Pull force values are estimates based on ideal testing conditions. Actual performance should always be verified for your intended application.

Technical Specifications

Specification Value
Magnet Type Neodymium Rare Earth Countersunk Disc Magnet
Grade N52
Shape Disc with Countersunk Center Hole
Diameter 7/8" (0.875" / 22.23 mm)
Thickness 1/8" (0.125" / 3.18 mm)
Countersunk Hole 0.355" x 0.195", 82°
Compatible Screw #8 Flat Head Screw
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Through Thickness
Pull Force Over 17 lbs*
Br Max 14,800 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.

Benefits

  • Excellent scratch resistance
  • Superior resistance to chipping and cracking
  • Outstanding corrosion protection
  • Smooth, polished metallic finish
  • Long-lasting durability in demanding environments

Magnet Grade Comparison

Grade Relative Strength Typical Applications
N35 Standard General-purpose magnets
N40 High Industrial applications
N42 Higher Engineering and manufacturing
N45 Very High Heavy-duty fixtures
N48 Extremely High Precision industrial applications
N52 Maximum High-performance industrial, engineering, and robotics applications

Disc Magnet Size Comparison

Size Typical Use
Small Crafts and lightweight mounting
Medium General-purpose magnetic fixtures
7/8" x 1/8" Countersunk Cabinet doors, displays, woodworking, equipment mounting
Large Heavy-duty industrial installations

Applications by Industry

Industry Common Uses
Manufacturing Magnetic fixtures and production equipment
Woodworking Cabinet doors, furniture, hidden magnetic catches
Construction Screw-mounted magnetic holders
Retail Displays, signage, exhibit fixtures
Industrial Equipment mounting and removable panels
DIY & Makers Workshop projects, custom builds, storage solutions

Common Questions About This Magnet

What is the pull force?

This magnet delivers over 17 pounds of pull force under ideal testing conditions.

What size screw fits this magnet?

The 0.355" x 0.195" 82° countersunk hole is designed to fit a #8 flat head screw.

Is N52 stronger than N42 magnets?

Yes. N52 is the strongest commercially available neodymium magnet grade and provides greater magnetic strength than N42 magnets of the same size.

Can this magnet rust?

The Nickel-Copper-Nickel triple-layer coating provides excellent protection against corrosion. However, if the coating becomes damaged and the magnet is exposed to moisture, corrosion can occur over time.

Can it be used outdoors?

Yes. For long-term outdoor or marine applications, additional sealing is recommended.

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.

Safety Notice: Neodymium magnets are extremely powerful and can pinch fingers or damage electronic devices if handled improperly. Always follow appropriate magnet safety guidelines.

Why Buy From Super Magnet Store?

  • Premium N52 NdFeB rare earth magnets
  • ISO-certified quality
  • Maximum-strength N52 grade
  • Precision countersunk hole for #8 flat head screws
  • 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, woodworkers, engineers, and DIY professionals worldwide


 

Frequently Bought Together

Total price$ 11.31
  • Free Shipping To US

    Free For All Orders. Minimum Required.

  • 30 - Day Return Policy

    Order Wthout Worry

  • Fast Delivery Time

    3-5 Days Shipping Time