Product Description

Neodymium  Disc Magnet N42 7/8"x1/2" Rare Earth Epoxy Coated Disc Magnet

This product measures 7/8" in diameter and 1/2" in thickness and is made of a grade N42 neodymium, iron, and boron magnetic alloy blend. This magnetic blend is patent licensed and made under the ISO 9001 quality systems. They are coated in a thick single layer epoxy coating that offers exceptional corrosion resistance when used in wet or humid environments. The North and South poles are on the flat sides. The pull force of this magnet is 39 lbs. This is a great item for use in personal projects as well as for crafts and closures and can also be used to help keep objects secured or fastened to any ferrous surface. 

• Material: Sintered NdFeB. Grade N42
• Gauss Rating: 13,200 Gauss
• Pulling Force: 39 lbs.
• Pole Orientation: Axially magnetized, the poles are on the flat ends.
• Coating: Black epoxy coated.
• Tolerance: The tolerances of all the dimensions are +/-0.002in with coating.

These N42 Disc Magnets measure 7/8" in diameter and 1/2" thick and is made of a grade N42 neodymium, iron, and boron magnetic alloy blend. This magnetic blend is patent licensed and made under the ISO 9001 quality systems.

Our small Neodymium Disc magnets are used both in the high tech arena and at the opposite end of the spectrum by individual hobbyists, inventors & tinkerers.  These Disc magnets are neodymium strength grade 42. These Disc magnets are Coated in a Nickel, copper nickel layered plating for both protection of the magnet & it gives the magnet that nice shiny silver finish.  N42. Neodymium is actually an alloy consisting of the Neodymium magnetic material, iron & boron.

This Neodymium Disc Magnet was created through a sintering process. Sintering is compacting and forming a mass of material (this case an alloy) with heat or pressure but keeping it from getting to the liquefaction stage then pressing it into the final magnet shape.

• QUALITY GUARANTEED: Made under ISO 9001 Quality Systems & Rare Earth Magnetics' Own Stringent QC Standards. Top Quality Best Price! 30 Days Money Back Guaranteed!
• MAGNETS COATED - Ni+Cu+Ni (nickel, copper and nickel )Triple Layer Coated. The Best Coating Available, which Provides a Shiny and Rust Resistant Protection for the Magnets.
• We have staffed with a team of experienced professionals in Rare Earth Neodymium Magnets and Magnetic Assemblies. As a provider of strategic supply, we have the unique capability to meet the requests of all of our customers.
• NEODYMIUM MAGNETS VERY POWERFUL : These Neodymium Disc Magnets are Rare Earth Magnets w/ A Very Strong Holding Force. They are Heavy Duty Neodymium Magnets. 
• TOP PRECISION: These Disc Magnets are Made better than the Industry Standard Tolerances, i.e. +/-0.002". Exacting Size Measurement Make Them Perfect For Even The Most Critical Applications.
• HANDY MAGNETS : These heavy duty permanent magnets are used in various projects at home and work. You can use them to organize your work space, kitchen, garage, lockers. It can also be used as shower curtain weight, school science projects and inventions.

Safety Warning: All magnets are fragile the same way a dish plate of the same thickness would be. These magnets especially the thinner ones should be treated the same way you would a thin dinner plate. Should one of these magnets break the edges are extremely sharp (like broken glass). Safety Warning: These neodymium Disc magnets are not for children. They may break and cut severely. Children that may place things in their mouths should be kept away from these magnets. If taken into the mouth these neodymium Disc magnets may pinch across internal organ membranes with deadly results.

About Neodymium Magnets

Neodymium rare earth Disc magnets are actually 10x stronger than the strongest ceramic magnets!  Unlike most other types of magnets, Neodymium is highly resistant to demagnetization and will not lose their magnetization around other magnets or if dropped.  They are magnetized through the thickness. They are composed of neodymium iron boron magnetic material. About Rare Earth Neodymium Magnets Rare earth magnets are the strongest type of permanent magnet currently made. All Neodymium magnets are rare earth  magnets but there are other types of magnets in the rare earth family. Neodymium is however the most popular & cost effective. Rare earth magnets are the strongest type of permanent magnet currently made.   The Rare earth family of magnets consist of basically 2 types of magnets. Neodymium magnets are notoriously resistant to demagnetization in and operating environment below 176 degrees F.. Neodymium is a rare earth element. Samarium cobalt magnets although not quite as strong, are a great substitute for neodymium when temperatures in the operating area reach more that 175 Degrees F. Neodymium, as sold on the market is actually an alloy consisting of the rare earth element neodymium, iron & Boron. The ratios of the mix are in part responsible for the strength differences of the magnets. You may see the element’s symbols Neodymium (Nd), Iron (Fe) & Boron (b).  This rare earth Ring magnet was created through a sintering process. Sintering is the process of compacting and forming a mass of material (this case a alloy) with heat or pressure but keeping it from getting to the liquefaction stage then pressing it into the final magnet shape.                                                                                       

CMS Magnetics offers the highest quality Neodymium magnets with consistent performance and lowest price.

 Neodymium disc magnets are used for many things such as: 

•  Homeowners for hanging seasonal speakers outdoors
• Teachers for hanging decorations for classrooms & even getting kids involved with physics
• Garage owners for hanging hand tools, bicycles, signs, bottle openers whiteboards... 
• Home chefs Hanging grilling utensils
• Car owners keeping a glove box closed
• Purse owners keeping it closed
• Jewelry owners keeping it around your neck or wrist
• Magicians performing feats of magic
•  

Q & A

• Question: I accidentally removed the plastic from in between a couple of the magnets. how do i separate them?Answer: Slide one off the other
• marylyn · November 27, 2017

• Question: How can I tell which side to glue on?
• Answer: Put them together and see which sides stick and repel. They are not marked though.
• Christi · June 7, 2019

• Question: The description of this item, in a couple places it says 80 pieces, in another place it says 100 pieces. Which is it?
• Answer: The count is variable depending on the size option you choose.
• Ronald W Tew · February 24, 2010

• Question: The description is confusing (all 100 are "3mm" diameter?). what diameters and quantity are included?
• Answer: I got 10, and all were this stated size.
• smirkbot · December 31, 2018
• Question: If I put 4 of these on a small wooden sign (11"x7") would it be able to hold it up?
• Answer: I think so.
• Christine · June 9, 2018

• Question: Would these work on a shower curtain to keep it staying at the side of the tub?
• Customers are chatting about this View conversation
• Answer: If they are as strong as the neodymium magnets, then yes, I think it will. I have the tiny size for a magnet board and they are pretty strong.
• smiley · May 26, 2019

• Question: Would these work well for keeping a sliding pocket door closed? Which size would you recommend?
• ANSWER:  Perfect

  If you are asking these questions Disc Magnets can help!

• How can I stick pictures on my wall?                         

• How to hang heavy mirror without nails ?

• How do I temporarily  stick 2 materials together?

• How can I hold temporary display sets ?

• How can I hold temporary theater sets up for quick breakdown?   

 Our Clients have used these for:

• Sorting metal items from non 
• Hold things up
• Hold things down
• Duvet Covers
• Hanging Art, scarves, jewelry, belts, Handbags and Jewelry
• Refrigerator Doors
• Spice Rack
• Knife Rack
• Cabinets
• Organizing Office Supplies
• Tablecloths
• Name badges
• Outdoor lights 
• Alternative medicine

 Some Alternative Choices

PLEASE NOTE:             

• All magnets may chip and shatter, but if used correctly can last a lifetime.
• Keep away from pacemakers.
• Not for children, parental supervision required.
• COMMERCIAL USE ONLY.
• If damaged please dispose of completely. Shards are still magnetized and if swallowed can inflict serious damage if magnets join inside the digestive tract.