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Bar

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Grade

N42

(124)

N52

(29)

Magnetization Direction

Thickness

(153)

Length (Bar)

(31)

Width

(8)

Length

1/16"

(2)

1/8"

(5)

3/16"

(2)

1/4"

(10)

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(8)

1/2"

(19)

3/4"

(13)

(29)

1 1/4"

(6)

1 1/2"

(13)

(25)

2 3/4"

(1)

(10)

(9)

(1)

up to 1/8"

(7)

> 1/8" thru 1/4"

(12)

> 1/4" thru 3/8"

(8)

> 3/8" thru 1/2"

(19)

> 1/2" thru 3/4"

(13)

> 3/4" thru 1"

(29)

> 1" thru 2"

(44)

> 2"

(21)

Width

1/16"

(3)

1/8"

(22)

3/16"

(7)

.188"

(1)

1/4"

(39)

3/8"

(17)

1/2"

(35)

3/4"

(5)

(17)

1 1/2"

(4)

(3)

up to 1/8"

(25)

> 1/8" thru 1/4"

(47)

> 1/4" thru 3/8"

(17)

> 3/8" thru 1/2"

(35)

> 1/2" thru 3/4"

(5)

> 3/4" thru 1"

(17)

> 1" thru 2"

(7)

Thickness

1/32"

(5)

1/16"

(26)

1/10"

(2)

1/8"

(33)

3/16"

(4)

.188"

(1)

1/4"

(32)

3/8"

(4)

1/2"

(25)

3/4"

(3)

(13)

(5)

up to 1/8"

(66)

> 1/8" thru 1/4"

(37)

> 1/4" thru 3/8"

(4)

> 3/8" thru 1/2"

(25)

> 1/2" thru 3/4"

(3)

> 3/4" thru 1"

(13)

> 1" thru 2"

(5)

Pull Force

up to 2 lb

(19)

> 2 thru 5 lb

(24)

> 5 thru 10 lb

(31)

> 10 thru 20 lb

(27)

> 20 thru 50 lb

(33)

> 50 thru 100 lb

(11)

> 100 thru 250 lb

(6)

> 250 lb

(2)

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(153)

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(1)

Other Categories

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(1)

Hole Angle

82°

(1)

Max Operating Temp

176°F (80°C)

(153)

Price

categories
> neodymium
> bars

Neodymium Bar Magnets

Neodymium bar shaped block magnets that are long and thin or magnetized through length

Use product filters to choose bar magnet magnetization direction

Versatile bar magnets for industrial, electronic, and DIY applications

Huge inventory | Low prices | Fast shipping

Neodymium Bar Magnets - are the strongest bar magnets on the market and are classified as permanent rare-earth magnets. We offer many grades and sizes from small to large for bar shapes. Bar magnets are also the traditional north south magnets we all know from science class that are typically marked red at one end and blue at the other. If you need a size or grade we do not stock, we provide Custom Bar Neodymium Magnets in addition to full service expert magnet engineering and design advice, abundant free knowledge and DIY guides and free magnet strength and field calculators.

Types of block magnets

A block magnet is a wide term that includes brick magnets, square magnets, rectangle magnets, cube magnets and bar magnets. The below pictures group these into 3 distinct categories.

Block Magnets

All block, cube, bar, brick, square and rectangle magnets in one category
Bar Magnets

Block magnets long and thin or magnetized through length
Cube Magnets

Block magnets in perfect cube shape

Available coatings for bar magnets

We provide the below nickel, black nickel, gold, rubber and plastic coatings for our bar magnets. Our default coating is a 3-layer nickel-copper-nickel (Ni-Cu-Ni) to protect from moisture and corrosion, enhance durability and to give a nice smooth silver finish. Additional coatings such as epoxy and silver available. See custom neodymium bar magnets for more details

Nickel
Black Nickel
Gold
Rubber
Plastic

Neodymium Magnet Coatings

Learn which coating is best for your bar magnets
Custom Bar Magnets

Don't see the coating you need? Get a custom bar magnet quote.

Technical information for bar magnets

Get more detailed technical information and specifications for neodymium bar 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: N35, N38, N40, N42, N45, N48, N50, N52.
Heat grades - Available in heat grades: N, NM, NH, NSH, NUH, NEH, NAH.
Sizes - Available from 1/32" or about 0.8mm, all the way up to 6" or about 150mm. We also have popular sizes like 1/4", 1/2", 3/4", 1", 2" with many sizes with countersunk holes. You can use our magnet finder tool and select metric sizes to find close equivalents to popular metric sizes like 5mm, 10mm, 25mm, 50mm diameters, hole size or thicknesses, etc.
Tolerances - Dimensional tolerances for all bar magnets are 0.004" or 0.1mm.
Pull force - Testing for all bar magnets pull forces was done with precision equipment in real world use situations. You can use our free Magnet Strength Calculator and listed pull force for each product as a reference point, but each use case may present a unique situation and pull force may vary.

Neodymium Magnet Specs

See specs for all neodymium magnets or check product page for bar specific info
Magnet Grades

Learn more about bar magnets in our comprehensive magnet grade blog article
Temperature & Neodymium Magnets

Learn how temperature affects neodymium magnets

Bar magnet magnetization directions

We offer bar magnets in through thickness, through width and through length magnetization directions. Most bar magnets are through their thickness dimension and bar magnets are through the length dimension and resemble the traditional north and south pole magnets used in science experiments. Our products are listed in order of length, width, then thickness. Below are diagrams of three magnetic polarizations we provide.

Through thickness polarization
Through width polarization
Through length polarization

General magnet info

Neodymium Magnet Info

Learn the basics about rare earth neodymium magnets
Magnetic Fields

Learn the basics about magnetic fields and gauss strength ratings
Magnet Basics

Learn the basics of magnets and how they work
Magnet FAQ

Answers to many common and uncommon magnet questions

Neodymium magnets (NdFeB) are the strongest rare earth permanent magnets available. Our neodymium bar magnet selection features - plastic and rubber coated magnets, adhesive backed magnets and much more. Bar magnets come in huge variety of sizes from tiny magnets to large very strong magnets and can be used for many different applications.

What is a bar magnet? - A bar magnet is a long, thin-shaped block magnet. There are multiple definitions, but a length that is at least 2 times greater than width or height is general definition. Additionally, in the world of magnetics, traditional bar magnets are magnetized through length with the north pole at one end and the south pole at the other. These bar magnets are popular for science experiments and projects and are a great way to demonstrate the dipolar model.

Bar magnet applications and uses

Bar magnets are used in a wide variety of applications from industrial, recycling, electronics to DIY projects and every day use. Check out our applications categories, magnet uses page and blog to learn more about how neodymium bar magnets are used.