All of our Magnets WITH HOLE for Sale Online: start by choosing the right category!

We are a distributor and manufacturer of magnets since 1973. In our magnet online shop you can find over 1000 products (and even more if we include product variations).  Millions of strong magnets available in stock and ready for fast delivery (same-day shipping of all orders completed before 12:00 GMT+1). If you still cannot find the magnet you are looking for, ask our team via chat, phone or email. Our warehouse has thousands of other products with different sizes or magnetizations.  We also manufacture personalized and custom-made magnets as well.

All of the magnets in this category are designed and manufactured with one or two holes. We offer different types of holes, such as through, threaded or countersunk, granting maximum flexibility in every application. Our catalogue includes Neodymium magnets for maximum performance, cheap Ferrite magnets or heat-resistant AlNiCo magnets. They are perfect for fastening with screws, bolts, hex bolts, cap screws, socket screws, set screws and threaded studs. Many shapes and sizes available with M3, M4, M5, M6 and M8 diameter.

An overview of our main product categories: 

• Neodymium ring magnets: also called NdFeB or Rare Earth Magnets, they are the strongest commercially available magnets. The standard magnetization grade is N35, but you can buy N38, N40, N42, N45, N48, N50, N52 and even super N56 magnets. In this category you can find Neodymium Discs with a hole in the center (round, circle, cylindrical magnets). Many sizes available: external diameter from 8 to 134mm, internal hole diameter from 3 to 98mm, thickness from 1 to 20mm;

• Neodymium countersunk hole discs: Neodymium discs with a countersunk hole in the center. Round magnets with a hole for screws. They are perfect to be fixed with a screw to any material or surface. Many sizes available: diameter from 10 to 50mm, thickness from 2 to 20mm, hole diameter from 3.2 to 6.5mm;

• Neodymium discs with hole and double countersink: Neodymium Discs with a countersunk hole on both sides. This makes them extremely versatile. They can be screwed to any surface, allowing you to choose the polarity on each side;

• Neodymium countersunk hole blocks: Neodymium blocks with a countersunk hole in the center. Square or rectangular magnets with a hole for screws. They are perfect to be fixed with a screw to any material or surface. Available with 1 or 2 holes for even a better stability. Many sizes in stock: width from 5 to 30mm, length from 1o to 100mm,  thickness from 3 to 10mm, hole diameter from 2.1 to 5mm

• Neodymium reinforced blocks with 2 countersunk holes: Neodymium blocks encased in a steel housing. This greatly increases its structural integrity and attraction force. Rectangular magnets with a countersunk hole for screws. They are perfect to be fixed with a screw to any material or surface;

• Neodymium threaded hole discs:Neodymium discs with a threaded hole in the center (tapped hole). Round magnets with a through-hole for screws and bolts. They are perfect for fastening with hex bolts, cap screws, socket screws, set screws and  threaded studs. Many sizes available with M3, M4 and M5 thread;

• Neodymium pots with through hole: Neodymium discs with a through-hole in the center. These magnets are encased in a steel pot for added protection and magnetic force. Standard, countersunk or threaded hole;

• Neodymium threaded hole pots: Neodymium discs (cylinders) with a blind threaded hole in the center. These Neodymium magnets are encased in a steel pot for added protection and magnetic force. They can be attached to hex bolts, cap screws, socket screws, set screws and threaded studs. Many sizes available with M3, M4, M5, M6 and M8 thread;

• Ferrite ring magnets: also called Ceramic Magnets, they are very resistant to high temperatures and corrosion. Although weaker, they are cheaper than a neodymium magnet of the same size. In this category you can find Ferrite Discs with a hole in the center (round, circle, cylindrical magnets). Many sizes available: external diameter from 13.5 to 134mm, internal hole diameter from 5.5 to 57mm, thickness from 2 to 15mm;

• Ferrite pots with through hole: Ferrite discs with a through-hole in the center. These ferrite magnets are encased in a steel pot for added protection and magnetic force;

• AlNiCo magnets with threaded hole: made of an alloy of Alluminium, Nickel and Cobalt, they offer the highest temperature resistance among permanent magnets, up to 650 °C without incurring in any loss of performance. AlNiCo discs (cylinders) with a threaded hole in the center. This AlNiCo magnets are encased in a steel pot for added protection and magnetic force. They can be attached to hex bolts, cap screws, socket screws, set screws and threaded studs. Many sizes available with M3, M4, M5, M6 and M8 thread;

• AlNiCo magnets with through hole: AlNiCo discs (cylinders) with a through-hole in the center, either threaded or countersunk. These AlNiCo magnets are encased in a steel pot for added protection and magnetic force. They are perfect for fastening with hex bolts, cap screws, socket screws, set screws and  threaded studs;

You can also search for the right magnet based on the application you need, such as: Magnet Therapy, Waterproof Magnets, Heat Resistant Magnets, Magnets for the Nautical Sector and more…

GO TO THE APPLICATIONS PAGE

Any question about magnets with hole and our product range? Here a quick guide:

What is a countersunk hole and what it is used for?

A countersunk hole is a conical hole drilled into an object or surface. The hole is usually through and can be threaded. Countersunk holes are specifically designed to allow the head of a fastener (like a screw or rivet) to sit flush with or slightly below the surface. This allows it to be fastened with a screw while leaving a smooth surface. These holes are used in many practical applications for fastening objects, primarily to improve aesthetics, prevent snagging, and reduce clearance issues. A countersunk magnet can be attached to any surface with the use of a screw, to stay firmly in place while it performs its function.

What is a threaded hole and what it is used for?

A threaded hole, also called tapped hole, is a cylindrical hole with internal helical grooves (threads) designed to be used to fasten an element to a surface o to another object using screws, bolts or studs. It can also be countersunk. It creates a strong, removable, and reusable joint in machinery, allowing components to be assembled and disassembled without damaging the base material. A magnet with threaded hole can be fasted to stay firmly in place while it performs its function.

What does the M stand for in M3, M4, M5, M6, M8 holes?

The ‘M‘ stands for Metric, indicating that the hole is suitable for screws of that kind, following the ISO metric screw thread standard. The number denotes the nominal outer diameter of the thread in millimeters, meaning an M3 hole has a major diameter of 3mm, while an M4 hole has 4mm and so on.

What are the grades of neodymium magnets? What does the letter N stand for?

The grade of a neodymium magnet represents its magnetic strength; the higher the grade, the stronger the magnet. This grade is indicated by the letter N followed by a number (usually from 35 up to 56).  It is linked to the magnetic flux output per unit of volume and increase with the quantity of Neodymium present in the magnet. Our standard products are N35, but we have many magnets in stock with N38,N40,N42,N45,N48,N50,N52, N56 grades.

What is the pulling force / force of attraction of a magnet? How strong is a Neodymium magnet?

A magnet’s strength is determined by its magnetic field, which is quantified by magnetic flux density and measured in Gauss (G) or Tesla (T). For practical applications, the “pull force” in kilograms is often used to indicate how much weight a magnet can hold under ideal conditions. On SuperMagneticShop, in the previews and in the product pages, you can find an indication of the “strength” of the magnet, that corresponds to its pull force. Pull force varies according to size, shape and material. For reference, a D.12×3 mm Ferrite Disc has a pull force of 0,20kg, a Neodymium Disc of the same size with grade N35 has a pull force of 1,8 Kg, a N52 disc has 3,10 Kg. while a magnet with N56 grade can reach 4,5 kg !!! Check out our blog post  How strong is a Neodymium Magnet?

Note that the this pull force is measured in lab conditions and with the magnet perfectly adhering to the metal surface. Factors like uneven contact surface, distance from the object, temperature, humid environments and loss of magnetization due to multiple factors (like passing of time or shocks), can affect the pull force of a magnet. Ask our technical team to choose the right magnet for your application and to receive detailed specifications.

Why should you buy your Magnets with Hole Online on SuperMagneticShop.com?

On SuperMagneticShop you can buy cheap Magnets with Hole Online directly from the manufacturer:

• Wide range of products for all applications. Round, square or rectangular magnets. Large, standard, small or mini. With through, threaded or countersunk hole. Single or double hole for maximum flexibility;
• Neodymium, Ferrite (ceramic) or Alnico magnets;
• Millions of magnets ready in stock for fast delivery across Europe. Same-day shipping for orders completed before 12pm(GMT+1);
• Quality magnets at the best price. The more you buy, the lower the price. Wholesale and retail;
• Custom-made magnets and technical design assistance;
• We supply the strongest magnets on the market, such as powerful neodymium magnets with magnetization grade up to N56;
• We are a manufacturer, supplier and wholesaler of magnets since 1973 with 50+ years experience on the market and a well established reputation and reliability. We are ISO9001 certified;
• We fulfill thousands of orders every year with plenty of positive reviews available on Trustedshops, Google and our Social Channels;
• Customer service in 5 languages: English, Italian , French, Spanish and German . Rapid response times by live chat, phone or e-mail with expert technical assistance;
• Year-round special sales and further discounts for large orders;
• Clear specifications and detailed information provided for each magnet in the product page;
• Great browsing experience with product search functionality, product filters and user guides;
• FAQs and helpful articles about magnets;
• Worldwide shipping and tailored quotes for business clients.

Do you need help choosing the right magnet for your application?
Ask our team via Chat, E-Mail or by phone: GO TO CONTACTS

Do you need a magnet with different characteristics?
Use our CUSTOM MAGNETS REQUEST PAGE

Do you need a quote for large orders?
Use our BULK ORDERS REQUEST PAGE 

Are you a Company looking for Partnerships, Supply Contracts, Custom Quotations, Custom Made Products or Worldwide Shipping Options?
Visit our B2B PAGE 

Any more questions? Visit our FAQ PAGE ! You can also read our articles: Neodymium vs Ferrite Magnets: complete guide and Neodymium Magnets: The Complete Guide !