N42 Neodymium Cylinder Magnet 5/16" x 5/16" Rare Earth Magnet
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Cylinder Magnet |
| Grade |
N42 |
| Shape |
Cylinder |
| Diameter |
5/16 inch (0.3125") |
| Length |
5/16 inch (0.3125") |
| Pull Force |
Approx. 11 lbs or more* |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Length (Axially Magnetized) |
| Br Max |
13,200 Gauss |
| BH Max |
42 MGOe |
| Certification |
ISO Certified |
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 11 lbs or more 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 magnets provide greater magnetic strength than N35, N38, and N40 magnets of the same dimensions. |
| Can it be used outdoors? |
Yes. The Nickel-Copper-Nickel triple-layer coating provides excellent corrosion resistance. For long-term outdoor or marine applications, additional sealing is recommended. |
| What is it commonly used for? |
Alignment pins, embedded magnetic mounts, magnetic closures, woodworking, electronics, fixtures, product assemblies, and DIY projects. |
Product Overview
The N42 Neodymium Cylinder Magnet 5/16" x 5/16" combines a perfectly balanced cylindrical design with dependable rare earth magnetic performance. Measuring 5/16 inch in diameter and 5/16 inch in length, this true cylinder magnet fits neatly into drilled holes, molded components, and precision assemblies while providing consistent alignment and reliable holding power.
Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these cylinder magnets deliver excellent magnetic strength for woodworking, engineering, electronics, magnetic closures, fixtures, product assembly, and custom fabrication. Their equal diameter and length provide excellent stability and predictable performance, making them an outstanding choice for both industrial and hobby applications.
Each magnet is protected by a durable Nickel-Copper-Nickel triple-layer coating that resists corrosion, oxidation, and everyday wear while maintaining a smooth, polished finish. Precision manufactured and ISO Certified, these magnets provide long-lasting performance you can depend on.
What Is a Neodymium Cylinder Magnet?
A neodymium cylinder magnet is a rod-shaped permanent magnet manufactured from neodymium, iron, and boron (NdFeB). Unlike disc magnets, cylinder magnets produce a deeper magnetic field, making them ideal for embedded installations, alignment pins, positioning systems, magnetic latches, and precision mechanical assemblies.
Their symmetrical shape allows them to fit securely into drilled holes and custom-machined components while delivering exceptional magnetic strength in a compact footprint.
How Strong Is This Magnet?
This N42 cylinder magnet generates approximately 11 pounds or more of pull force under ideal conditions against a thick, flat steel surface. Its balanced 5/16-inch diameter and 5/16-inch length provide excellent stability while creating a deep, concentrated magnetic field for secure holding performance.
With a Br Max of 13,200 Gauss and BH Max of 42 MGOe, this magnet offers dependable strength for demanding industrial, commercial, and DIY applications.
Because cylinder magnets have a relatively small contact surface, actual pull force may vary depending on the application, mating material, air gap, surface finish, and installation method. Testing in your specific application is recommended.
Technical Specifications
| Property |
Specification |
| Material |
Neodymium (NdFeB) |
| Grade |
N42 |
| Shape |
Cylinder |
| Diameter |
0.3125 inch (5/16") |
| Length |
0.3125 inch (5/16") |
| Br Max |
13,200 Gauss |
| BH Max |
42 MGOe |
| Pull Force |
Approx. 11 lbs or more* |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Length (Axially Magnetized) |
| 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, woodworking, electronics |
| N52 |
Maximum |
High-performance engineering and precision manufacturing |
Cylinder Magnet Size Comparison
| Size |
Typical Use |
| Small |
Precision electronics, sensors, crafts |
| Medium |
Magnetic closures, woodworking, assemblies |
| Large |
Industrial fixtures and heavy-duty holding |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Fixtures, locating pins, assembly tooling |
| Robotics |
Positioning systems, sensors, actuators |
| Electronics |
Embedded components, connectors, switches |
| Education |
STEM projects and engineering demonstrations |
| DIY |
Woodworking, resin casting, hobby projects, organization |
Common Questions About This Magnet
What is the pull force?
This magnet provides approximately 11 pounds or more of pull force under ideal conditions. Actual holding force may vary depending on the application and contact surface.
Is N42 stronger than N35?
Yes. N42 magnets deliver noticeably greater magnetic strength than N35 magnets while maintaining an excellent balance of performance and value.
Can it rust?
Like all neodymium magnets, the core material can corrode if exposed. The Nickel-Copper-Nickel triple-layer coating provides excellent protection against moisture, oxidation, and everyday wear.
Can it be used outdoors?
Yes. For prolonged outdoor or marine exposure, applying an additional protective sealant is recommended to maximize service life.
What direction is it magnetized?
This cylinder magnet is axially magnetized through its length, meaning the north and south poles are located on the two circular ends.
Do you offer bulk discounts?
Yes. Super Magnet Store offers competitive wholesale pricing and quantity discounts for manufacturers, distributors, educational institutions, retailers, and OEM customers.
Why Buy From Super Magnet Store?
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Premium NdFeB rare earth magnets
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ISO-certified quality
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Reliable N42 magnetic performance
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Durable Nickel-Copper-Nickel triple-layer coating
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Excellent corrosion resistance
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Precision manufacturing tolerances
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Consistent magnetic performance
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Bulk discounts available
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Fast shipping from a trusted magnet supplier
*Pull force is approximate. Because cylinder magnets have a relatively small contact surface, actual holding force may vary depending on the application, material thickness, surface finish, air gap, and mounting conditions. Testing in your specific application is recommended.
