---
product_id: 14531780
title: "Applied Magnets 3\" Strong 420 lbs NdFeB Neodymium Cup Magnet with Countersunk Hole."
brand: "applied magnets"
price: "€ 194.04"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/14531780-applied-magnets-3-strong-420-lbs-ndfeb-neodymium-cup-magnet
store_origin: NL
region: Netherlands
---

# 420 lbs pull force 3" diameter Triple layer coated Applied Magnets 3" Strong 420 lbs NdFeB Neodymium Cup Magnet with Countersunk Hole.

**Brand:** applied magnets
**Price:** € 194.04
**Availability:** ✅ In Stock

## Summary

> 🔗 Elevate Your Projects with Unstoppable Strength!

## Quick Answers

- **What is this?** Applied Magnets 3" Strong 420 lbs NdFeB Neodymium Cup Magnet with Countersunk Hole. by applied magnets
- **How much does it cost?** € 194.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/14531780-applied-magnets-3-strong-420-lbs-ndfeb-neodymium-cup-magnet)

## Best For

- applied magnets enthusiasts

## Why This Product

- Trusted applied magnets brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Risk-Free Purchase:** Enjoy a 30-day satisfaction guarantee—your happiness is our priority!
- • **Unmatched Strength:** Experience the power of 420 lbs pull force, making it 10x stronger than ceramic magnets.
- • **Durability Redefined:** Triple layer nickel-copper-nickel coating ensures long-lasting performance against corrosion.
- • **Precision Engineering:** Crafted in ISO certified facilities for unparalleled quality and reliability.
- • **Versatile Applications:** Perfect for home projects, education, and even NASA's Mars Rovers!

## Overview

The Applied Magnets 3" Neodymium Cup Magnet boasts an impressive 420 lbs pull force, crafted in ISO certified facilities for maximum quality. With a triple layer coating for durability, this magnet is perfect for a variety of applications, from home improvement to educational projects, and even used by NASA. Plus, it comes with a 30-day satisfaction guarantee.

## Description

Full description not available

## Features

- The Applied Magnets Super Strong Neodymium Magnet is one of the world’s strongest and most powerful rare earth magnets. We manufacture every piece in state of the art ISO certified Magnet manufacturing facilities to ensure maximum quality.
- STRONG - Includes one Neodymium Rare Earth Permanent Cup Magnet 3" diameter x 0.76" thick with incredible Grade N42 Magnetic Energy, stronger than N40, N38, N35, and a whopping 10x Stronger than the strongest ceramic magnet.
- POWERFUL - Applied Magnets Rare Earth Neodymium Magnets have an estimated pull force of 420 lbs. and are triple layer coated (nickel-copper-nickel) for maximum durability and protection against corrosion.
- USEFUL – Use your rare earth magnet for just about anything, including finding studs in your wall, fastening, holding, lifting objects, various projects & presentations, education, & more. NASA even uses them on Mars Exploration Rovers!
- SATISFACTION GUARANTEED – We’re confident that you’ll love our Neodymium Permanent magnets, which is why we’re happy to include a 100% satisfaction, 30-day guarantee with your neodymium order.

## Product Details

- **Material:** Neodymium
- **Brand:** Applied Magnets
- **Product Dimensions:** 3"L x 0.76"W x 0.76"Th
- **Color:** Silver
- **Shape:** Round

## Images

![Applied Magnets 3" Strong 420 lbs NdFeB Neodymium Cup Magnet with Countersunk Hole. - Image 1](https://m.media-amazon.com/images/I/71cEla7+0BL.jpg)
![Applied Magnets 3" Strong 420 lbs NdFeB Neodymium Cup Magnet with Countersunk Hole. - Image 2](https://m.media-amazon.com/images/I/71RQKuvkM+L.jpg)
![Applied Magnets 3" Strong 420 lbs NdFeB Neodymium Cup Magnet with Countersunk Hole. - Image 3](https://m.media-amazon.com/images/I/71Iy1wVrIAL.jpg)
![Applied Magnets 3" Strong 420 lbs NdFeB Neodymium Cup Magnet with Countersunk Hole. - Image 4](https://m.media-amazon.com/images/I/61VT7N1jWfL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this legit , like would i really get a magnet that has 420 lbs pull force ?**
A: I dont know if it's 420 pounds, but it is super strong. I had to use a pry bar to slide it to the edge of a 1/4" steel plate and pry it off.  It will seriously pinch fingers

**Q: Will this hold a 40 pound object onto a metal roof?**
A: Depends on the surface and the direction of the load.  A thin metal roof will not give the magnet the same holding power as a 1/4" steel plate.  If the surface is fairly solid (I-Beam or something), this will hold 40 lbs no problem.  But the load has to be mostly straight down.  Pulling at an angle will lessen the load it will hold.  It will also slide across a metal surface if you pull it sideways.

**Q: hole diameter?**
A: It's about 1 cm.

**Q: I'd like to get this and the "Sea Dog 78110 EYE NUT STAINLESS 3/8IN STAINLESS STEEL EYE NUT", anyone know the bolt size I must get?**
A: The bolt needed is also sold at Amazon...3/8-16 x 1-1/2" flat head stainless steel machine screw. If you click on the eyebolt and scroll down you should be able to see the attachment bolt info also. Be sure to get a quality stainless steel bolt if using in water. These should be available at any good hardware store locally in tour neighborhood.3/8-16 x 1-1/2" Flat Head Machine Screws, Phillips Drive, Stainless Steel 18-8, Full Thread, Bright Finish, Machine Thread, Quantity 10      Be the first to review this item      Price: $8.88  ($0.89 / Item)  Free Shipping for Prime Members       Only 1 left in stock - order soon.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Strong as advertised used this item to secure a Starlink satellite dish to a metal roof
*by K***H on April 14, 2024*

Strong, holds the dish securely. The individual magnet strength are good, combined it is exceptionally

### ⭐⭐⭐⭐⭐ really strong hold
*by R***. on April 12, 2018*

Bought this to attach to my Milwaukee 2351-20 M12 LED Stick Light with a stainless screw (1/4 in -20 x3/4in from hardware store). It works great, almost too strong of a hold. In hindsight, I should really go with a weaker magnet but the weaker ones are too small in diameter for my application.

### ⭐ WEAK MAGNET
*by S***O on December 22, 2019*

This is basically a 1/4" thick magnet that is weakened by a steel cup around it. The advertised 200+ pound strength is laughable. My five year can pull it off. The only good thing about it is the countersunk hole. Recommend the company ditch the steel cup and make the magnet 1/2" thick. OH, and on top of that, it's not returnable due to "safety reasons" even though it's Prime.

## Frequently Bought Together

- Applied Magnets 3" Strong 420 lbs NdFeB Neodymium Cup Magnet with Countersunk Hole.
- LOVIMAG Neodymium Cup Magnets,Rare Earth Magnets with100 LBS Holding Force,Dia 1.26 inch, with Heavy Duty Countersunk Hole and Stainless, for Tool Room,Workplace etc,Pack of 8

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-22*