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Countersunk and counterbored neodymium magnets with screw hole

Neodymium Countersunk & Counterbored Magnets

Screw-on magnets with countersunk holes provide a clean, flush fastening solution

Strong countersunk screw hole magnets are ideal for industrial and commercial use, allowing parts to be securely attached with screws. Conical recesses provide a clean finish and countersunk magnet pairs offer aligned mounting; giving dependable strength for displays, enclosures, signage, and fixtures.

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Strong Neodymium Countersunk Magnets for Sale

Huge stock and selection of rare earth neodymium countersunk magnets. Permanent neodymium countersunk magnets with a screw hole for secure install. Also offer countered bored hole to accept hardware other than screws. Standard plating is N42 which a nice balance between high performance and low cost. We offer countersunk block magnets and countersunk disc and ring magnets as well as countersunk mounting magnets. Sizes range from small countersunk magnets 1/8" or 1/4" up to heavy-duty ones up to 2 inches in size.

Volume Discounts on Countersunk Magnets

We offer large bulk discounts for all countersunk magnets and have additional promotions, sales and special discount coupons for our newsletter subscribers.

Countersunk Magnet Coatings

Our standard countersunk magnet coating is a 3-layer nickel-copper-nickel (Ni-Cu-Ni) plating to protect from moisture and corrosion, enhance durability and to give a nice smooth silver finish. Additional coatings such as epoxy (Ni-Cu-Ni + epoxy) and silver (Ni-Cu-Ni + Ag) available. See custom neodymium countersunk magnets for more details

Countersunk Magnet Magnetization Directions

Our countersunk magnets are polarized through the thickness for countersunk blocks and axially for countersunk discs. Countersunk hole magnets also have axial or through thickness magnetization and the north pole facing outwards away from the stainless steel cup or frame.

Countersunk Magnet General Information

Below are some common questions we get regarding countersunk magnets.

What is a countersunk magnet?

Neodymium countersunk magnets are permanent rare earth magnets featuring a screw hole for a strong install into wood, metal or other surfaces. Different length screws can be used as well for a tighter hold. Countersunk magnet can attach to steel or another countersunk magnet with the opposite pole facing out. We sell countersunk magnets in north-south pairs.

Where are countersunk magnets used?

Countersunk magnets are used for a tight fit embedded in magnetic assemblies where a strong attachment solution is required. It creates a firm installation with no need for glue, screws or any additional hardware.

When are countersunk magnets best?

Countersunk magnets are best for any application where you have the freedom to create an assembly where the magnet can slip into seamlessly and be embedded. This reduces production time and cost as well as the need for any adhesives or screws, bolts or any other type of hardware. They also work best in applications where precise part alignment and strong mechanical stability is a must.

Countersunk Magnet Specs

Get more detailed technical information and specifications for neodymium countersunk magnets below on our specs page and product specific features, downloads, drawings, magnetic field data and stats on individual product pages.

Strength Grades

Available in strength grades:

Heat Grades

Available in heat grades:

Sizes

Available in tiny sizes from 1/8" or about 3.18mm up to large 2" or about 50mm. Popular sizes like 1/4", 1/2", 3/4", 1", 2" available. Use our magnet finder tool for metric equivalents.

Tolerances

Dimensional tolerances for all countersunk magnets are 0.004" or 0.1mm.

Pull Force

Magnet strength testing for all countersunk magnets was done with precision equipment. Use our free Magnet Strength Calculator. Pull force may vary by use case.

Countersunk Magnet Applications

Countersunk magnets are used in a wide variety of magnetic assemblies for a quick and easy hold where the magnet slides seamlessly into a pre-fabrication assembly or frame. Check out our applications categories, magnet uses page and blog to learn more about how neodymium countersunk magnets are used.

Neodymium Countersunk & Counterbored Magnets

3/4 x 1/4 Inch Neodymium Rare Earth Counterbored Pot Magnet N42 MMS-B-C

1 x 1/4 Inch Neodymium Rare Earth Counterbored Pot Magnet N42 MMS-B-X0

1 x 1/4 Inch Neodymium Rare Earth Stainless Steel Pot Magnet N42 MMWR-B-X0

1 1/4 x 3/8 Inch Neodymium Rare Earth Counterbored Pot Magnet N42 MMS-B-X4

1 1/2 x 3/8 Inch Neodymium Rare Earth Stainless Steel Pot Magnet N42 MMWR-B-X8

2 x 1/2 Inch Neodymium Rare Earth Stainless Steel Pot Magnet N42 MMWR-B-Y0

1 1/2 x 3/8 Inch Neodymium Rare Earth Counterbored Pot Magnet N42 MMS-B-X8

1 3/4 x 3/8 Inch Neodymium Rare Earth Counterbored Pot Magnet N42 MMS-B-XC

2 x 1/2 Inch Neodymium Rare Earth Counterbored Pot Magnet N42 MMS-B-Y0

2 1/2 x 5/8 Inch Neodymium Rare Earth Counterbored Pot Magnet N42 MMS-B-Y8

3 x 3/4 Inch Neodymium Rare Earth Counterbored Pot Magnet N42 MMS-B-Z0

16 x 5 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-16

20 x 7 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-20

25 x 8 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-25

32 x 8 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-32

36 x 8 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-36

42 x 9 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-42

48 x 11 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-48

60 x 15 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-60

75 x 18 mm Neodymium Rare Earth Countersunk Pot Magnet N38 MM-A-75