---
product_id: 48167364
title: "N42 Neodymium Magnet for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 30mm x 10mm x 5mm thick - 8.1kg Pull - Pack of 4"
brand: "first4magnets"
price: "R580"
currency: ZAR
in_stock: true
reviews_count: 8
category: "First4 Magnets"
url: https://www.desertcart.co.za/products/48167364-n42-neodymium-magnet-for-arts-crafts-model-making-diy-hobbies
store_origin: ZA
region: South Africa
---

# 30x10x5mm compact size 8.1kg pull force Triple-layer corrosion resistance N42 Neodymium Magnet for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 30mm x 10mm x 5mm thick - 8.1kg Pull - Pack of 4

**Brand:** first4magnets
**Price:** R580
**Availability:** ✅ In Stock

## Summary

> 🧲 Small magnet, massive impact—grab yours before they’re gone!

## Quick Answers

- **What is this?** N42 Neodymium Magnet for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 30mm x 10mm x 5mm thick - 8.1kg Pull - Pack of 4 by first4magnets
- **How much does it cost?** R580 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/48167364-n42-neodymium-magnet-for-arts-crafts-model-making-diy-hobbies)

## Best For

- first4magnets enthusiasts

## Why This Product

- Trusted first4magnets brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Demagnetization? Not Here.:** Exceptional resistance to demagnetization keeps your projects reliably magnetic over time.
- • **Powerful Grip, Minimal Bulk:** Experience industrial-grade 8.1kg pull strength in a sleek 30x10x5mm form factor—perfect for precision projects without the bulk.
- • **Built to Last, Resist to Rust:** Triple-layer nickel-copper-nickel coating ensures long-lasting corrosion resistance and a smooth, premium finish.
- • **Crafted for Creators & Engineers:** Versatile magnet designed for arts, crafts, model making, and professional manufacturing needs alike.
- • **Pack of 4, Endless Possibilities:** Multiple magnets in one pack to fuel your creativity, DIY hacks, and professional applications—don’t get left behind.

## Overview

The N42 Neodymium Magnet pack includes four powerful, corrosion-resistant magnets measuring 30x10x5mm each, boasting an impressive 8.1kg pull force. Engineered with a triple-layer nickel-copper-nickel coating and high resistance to demagnetization, these rare earth magnets are ideal for creative, DIY, and professional uses where strength and durability matter.

## Description

N42 Neodymium Magnet for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 30mm x 10mm x 5mm thick - 8.1kg Pull - Pack of 4 : desertcart.co.uk: Business, Industry & Science

Review: Crazy strong magnets! - I have been working on a sensor for monitoring 3d printer filament dry boxes and have tried a number of methods of attaching the sensor inside the box. This attempt I used magnets, one magnet on the outside (which I would stick) and then a magnet attached to the sensor. The picture here was a simple test, where no glue was used, simply one magnet on the outside and one on the inside, behind the plastic on the lower box. There's approximately 4-5mm of plastic in-between the two magnets and the force that the box is being held with is incredible, I have added considerably more weight (than this) and the thing still does not budge, which is remarkable given the gap and the "slipperiness" of the box itself. The only negative is the price of these magnets, they're really expensive, but I guess you don't get high quality magnets like this cheap. I ended up buying more of these because of how impressing they actually are.
Review: Strong adhesion for the size with multiple uses - Very small and light but very strong. I originally bought it as an experiment to manage wires behind plasterboard but unfortunately not strong enough for that however.. - Because I have steel joists this is an excellent tool to find out where they are behind the plaster board as it sticks to the wall where they lie - I had an Ikea cutlery rack which I installed years ago and placed one of these on the back of the steel channel and now it acts as a magnetic catch for my big knife.

## Features

- IDEAL FOR CREATIVE APPLICATIONS. Our neodymium magnets are commonly used in creative applications such as models and theatre design, clothes making, furniture making, exhibitions, and packaging.
- USEFUL FOR MANUFACTURING & ENGINEERING. Neodymium magnets have many uses in engineering and manufacturing where small size and maximum strength are required.
- RESISTANT TO DEMAGNETISATION. Excellent resistance to demagnetisation.
- CORROSION-RESISTANT PREMIUM COATING. Coated with three layers of nickel, copper, and nickel to reduce corrosion and provide a smooth and clean finish.
- RARE EARTH MAGNET. Each magnet can support a steel weight of up to 8.1kg vertically from the magnetic face when in flush contact with a mild steel surface.
- SPECIFICATIONS. 30mm x 10mm x 5mm thick.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TACLJ5Y |
| Best Sellers Rank | 328,443 in DIY & Tools ( See Top 100 in DIY & Tools ) 315 in Magnetic Hooks |
| Brand | FIRST4MAGNETS |
| Colour | Silver |
| Country Of Origin | China |
| Customer Reviews | 4.2 out of 5 stars 707 Reviews |
| Global Trade Identification Number | 05055641216889 |
| Included Components | Magnets |
| Item Dimensions L x W x Thickness | 30L x 10W x 5Th millimetres |
| Item Shape | Rectangular |
| Item Thickness | 5 Millimetres |
| Item Type Name | 30 x 10 x 5mm thick N42 Neodymium Magnet - 8.1kg Pull ( Pack of 4 ) |
| Item thickness | 5 Millimetres |
| Manufacturer | Magnet Expert® |
| Material | copper |
| Material Type | copper |
| Number of Pieces | 4 |
| Product dimensions | 30L x 10W x 5Th millimetres |
| Pull Force | 8.1 Kilograms |
| Shape | Rectangular |
| Unit Count | 4.0 Count |

## Product Details

- **Material:** copper
- **Brand:** FIRST4MAGNETS
- **Shape:** Rectangular
- **Number of pieces:** 4
- **Pull force:** 8.1 Kilograms

## Images

![N42 Neodymium Magnet for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 30mm x 10mm x 5mm thick - 8.1kg Pull - Pack of 4 - Image 1](https://m.media-amazon.com/images/I/51NhEla-qnL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can this magnet attract a nail until 1 cm 2 cm 3cm ?**
A: Not sure but they are strong. Really strong. 💪🏻

**Q: “Are they strong enough to stick behind a craftboard and magnetise on the otherside? About 6mm”**
A: This may sound daft, but, it depends on the density of the craft board. A soft board possible, a heavy density board, you would have to try. Warning though, they are strong enough to give a blood blister on your fingers if 2 catch you. From experience. Enjoy life. Bob S

## Customer Reviews

### ⭐⭐⭐⭐⭐ Crazy strong magnets!
*by A***E on 30 December 2021*

I have been working on a sensor for monitoring 3d printer filament dry boxes and have tried a number of methods of attaching the sensor inside the box. This attempt I used magnets, one magnet on the outside (which I would stick) and then a magnet attached to the sensor. The picture here was a simple test, where no glue was used, simply one magnet on the outside and one on the inside, behind the plastic on the lower box. There's approximately 4-5mm of plastic in-between the two magnets and the force that the box is being held with is incredible, I have added considerably more weight (than this) and the thing still does not budge, which is remarkable given the gap and the "slipperiness" of the box itself. The only negative is the price of these magnets, they're really expensive, but I guess you don't get high quality magnets like this cheap. I ended up buying more of these because of how impressing they actually are.

### ⭐⭐⭐⭐⭐ Strong adhesion for the size with multiple uses
*by A***R on 1 December 2019*

Very small and light but very strong. I originally bought it as an experiment to manage wires behind plasterboard but unfortunately not strong enough for that however.. - Because I have steel joists this is an excellent tool to find out where they are behind the plaster board as it sticks to the wall where they lie - I had an Ikea cutlery rack which I installed years ago and placed one of these on the back of the steel channel and now it acts as a magnetic catch for my big knife.

### ⭐⭐⭐⭐ 30x10x5 Magnets
*by P***D on 19 May 2016*

These are Ok. Quite strong wee magnets that'll snap together with some of your skin inbetween if you're not careful. Managed to retrieve a lost retaining nut that was rattling around in my vac's aluminium handle. ..edit. using all 4 of these I managed to remove a House of Fraser security tag which they left on a mail order jacket.

## Frequently Bought Together

- N42 Neodymium Magnet for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 30mm x 10mm x 5mm thick - 8.1kg Pull - Pack of 4
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-28*