N42 Epoxy Coated Neodymium Magnet with 2 Countersunk Holes – 2" x 1" x 1/2" Thick Rare Earth Block Magnet
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Block Magnet with Countersunk Holes |
| Grade |
N42 |
| Shape |
Block |
| Length |
2" (50.8 mm) |
| Width |
1" (25.4 mm) |
| Height |
1/2" (12.7 mm) |
| Pull Force |
Over 72 lbs |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Epoxy + Copper + Nickel Triple Layer |
| Magnetization |
Through Thickness |
| Br Max |
13,200 Gauss |
| Certification |
ISO Certified |
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Over 72 lbs of pull force under ideal conditions. |
| Is N42 stronger than N35? |
Yes. N42 is stronger than N40, N38, and N35 grades. |
| What is this magnet made of? |
NdFeB (Neodymium-Iron-Boron) rare earth material. |
| Can this magnet rust? |
The Epoxy + Copper + Nickel coating provides superior corrosion resistance and is ideal for humid environments. |
| What is it commonly used for? |
Outdoor mounting, marine applications, industrial fixtures, equipment mounting, woodworking, and heavy-duty magnetic fastening. |
Product Overview
Neodymium rare earth magnets are the world's strongest commercially available permanent magnets. Super Magnet Store offers premium-quality N42 neodymium magnets manufactured to stringent quality standards using advanced production technology. These magnets provide exceptional holding power, dependable performance, and long-term durability for industrial, commercial, and engineering applications.
This N42 neodymium block magnet measures 2" x 1" x 1/2" and features two dual-sided countersunk mounting holes for secure installation. Each hole measures 0.355" x 0.195" with an 82-degree countersink and is designed for use with #8 flat head screws. The holes are spaced 1 inch center-to-center, providing excellent mounting stability in demanding applications.
The advanced Epoxy + Copper + Nickel triple-layer coating offers superior corrosion resistance compared to standard nickel-plated magnets, making this magnet an excellent choice for applications exposed to moisture, humidity, or harsh environments. With over 72 lbs of pull force, this magnet combines exceptional holding strength with secure mechanical fastening.
What Is a Neodymium Block Magnet?
A neodymium block magnet is a rectangular rare earth permanent magnet made from neodymium, iron, and boron (NdFeB). Block magnets provide exceptional holding force and a large contact surface area, making them ideal for industrial equipment, manufacturing fixtures, engineering projects, cabinetry, automation systems, marine applications, and custom magnetic assemblies.
How Strong Is This Magnet?
This N42 neodymium countersunk block magnet generates over 72 lbs of pull force under ideal conditions. Actual holding strength depends on steel thickness, surface finish, air gaps, mounting configuration, and environmental conditions. With a Br Max rating of 13,200 Gauss, it delivers powerful magnetic performance in a heavy-duty mounting design.
Technical Specifications
| Specification |
Value |
| Product Name |
N42 Epoxy Coated Neodymium Block Magnet with 2 Countersunk Holes |
| Material |
Neodymium Iron Boron (NdFeB) |
| Grade |
N42 |
| Shape |
Block |
| Length |
2" (50.8 mm) |
| Width |
1" (25.4 mm) |
| Thickness |
1/2" (12.7 mm) |
| Number of Holes |
2 |
| Hole Type |
Dual-Sided Countersunk |
| Countersunk Hole Size |
0.355" x 0.195" |
| Countersink Angle |
82 Degrees |
| Hole Spacing |
1" Center-to-Center |
| Compatible Screw |
#8 Flat Head Screw |
| Coating |
Epoxy + Copper + Nickel Triple Layer |
| Magnetization Direction |
Through Thickness (1/2") |
| Pole Orientation |
On the 2" x 1" Surfaces |
| Pull Force |
Over 72 lbs |
| Br Max |
13,200 Gauss |
| Certification |
ISO Certified |
| Operating Temperature |
Up to 176°F (80°C) |
Note: Pull force is an estimate only and should be tested for your specific application.
Magnet Grade Comparison
| Grade |
Relative Strength |
Typical Applications |
| N35 |
Standard |
General purpose |
| N38 |
Moderate |
Consumer products |
| N40 |
High |
Industrial |
| N42 |
Higher |
Engineering |
| N52 |
Maximum |
High-performance |
Block Magnet Size Comparison
| Size |
Typical Applications |
| Small Blocks |
Electronics |
| Medium Blocks |
Fixtures & Closures |
| Large Blocks |
Industrial assemblies |
| Heavy-Duty Blocks |
Equipment mounting & structural applications |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Fixtures & tooling |
| Marine |
Corrosion-resistant mounting |
| Construction |
Heavy-duty fastening |
| Industrial Equipment |
Secure mounting systems |
| Engineering |
Product development |
| Automation |
Positioning systems |
| Woodworking |
Hidden magnetic mounting |
Common Questions About This Magnet
How much weight can this magnet hold?
This magnet provides over 72 lbs of pull force under ideal conditions. Actual holding capacity depends on the mounting surface, installation method, and application design.
Is N42 stronger than N35?
Yes. N42 magnets provide substantially greater magnetic energy and holding force than N35 magnets of the same dimensions.
What screws fit the countersunk holes?
The 0.355" x 0.195" 82-degree countersunk holes are designed for use with #8 flat head screws.
What is the hole spacing?
The two mounting holes are spaced 1 inch center-to-center.
Is the epoxy coating better than standard nickel plating?
Yes. The Epoxy + Copper + Nickel coating provides enhanced corrosion resistance and is particularly beneficial in humid, wet, or outdoor environments.
Can it rust?
The epoxy coating provides excellent protection against corrosion; however, damage to the coating may expose the underlying magnet material.
What direction is it magnetized?
This magnet is magnetized through the 1/2-inch thickness, with the north and south poles located on the 2" x 1" faces.
Do you offer wholesale pricing?
Yes. Contact Super Magnet Store for competitive volume pricing and wholesale discounts on corrosion-resistant neodymium magnets.
Why Buy From Super Magnet Store?
-
Premium NdFeB rare earth magnets
-
Superior Epoxy + Copper + Nickel corrosion-resistant coating
-
Dual countersunk mounting holes for secure installation
-
Powerful 72+ lb holding force
-
ISO-certified manufacturing
-
Competitive pricing
-
Wholesale discounts available
-
Superior quality and performance guaranteed
