K&J Magnetics Site Map
The K&J Magnetics welcome page.
The K&J Magnetics Products page, shows a top-level listing of product categories.
|Disc/Cylinder MagnetsNeodymium magnets in disc and cylinder shapes
|Neodymium Block MagnetsRectangular, square and cube shapes.
|Neodymium Ring MagnetsDiscs or cylinders with holes.
|Neodymium Sphere MagnetsSpherical or "ball" shaped neodymium magnets.
|Surplus Neodymium MagnetsVarious surplus magnets that we have acquired and offer at discounted prices.
|Mounting MagnetsPowerful magnets for attraction to a steel surface, plus the utility of attachment with a screw, hook or other threaded feature.
|Standard Mounting MagnetsDifferent styles of mounting hardware utilizing the incredible power of neodymium magnets. Designed for ANSI standard hardware, includes some with holes, studs, female studs and even hooks!
|MMS-AFlat mount with a tapered center hole for recessing the head of a screw.
|MMS-BFlat mount with a straight center hole to recess a bolt or a pan head screw.
|MMS-CSolid mounting magnet with a male stud attached for bolting to an assembly.
|MMS-DSolid mounting magnet with a female threaded shaft attached.
|MMS-ESolid mounting magnets with hooks attached.
|MMS-GSolid mounting magnets with eye hooks attached.
|MMS-HFlat mount with an internally threaded hole for attaching to a bolt.
|Metric Mounting MagnetsDifferent styles of mounting hardware utilizing the incredible power of neodymium magnets. Designed for metric, or ISO hardware, includes some with holes, studs, female studs and even hooks!
|MM-AFlat mount with a tapered center hole for recessing the head of a screw.
|MM-BFlat mount with a straight center hole to recess a bolt or a pan head screw.
|MM-CSolid mounting magnet with a male stud attached for bolting to an assembly.
|MM-DSolid mounting magnet with a female threaded shaft attached.
|MM-ESolid mounting magnets with hooks attached.
|MM-FSmall hooks with a strong magnet inside.
|MM-RCRubber covers for our Mounting Magnets to protect surfaces and prevent slipping. Now available for sizes 32mm through 75mm diameter.
|Rectangular Mounting MagnetsThe incredible strength of our Mounting Magnets, now available in a rectangular shape. A K&J exclusive!
|Magnetic HooksHooks with strong magnets inside provide a great solution for hanging objects from various surfaces. Metal walls, refrigerators, filing cabinets, etc.
|Stainless Mounting MagnetsNew! Mounting Magnets completely encased in stainless steel. Great for applications where corrosion is a concern.
|Plastic/Rubber CoatedOur super strong neodymium magnets coated in plastic and rubber are completely weatherproof and are virtually indestructible.
|Countersunk MagnetsCountersunk and Counterbored Magnets.
|Grade N52 MagnetsNeodymium magnets in grade N52. More powerful than grade N42 magnets of the same size.
|OtherSample Packages, Permanent Magnet Levitators, Steel Balls, Special Shaped Neo Magnets, Magnetic Viewing Film and more.
|Other Magnet ShapesUnique shapes and special-use magnets.
|Arc SegmentsCurved magnet segments of various dimensions and magnetization directions.
|Sample PackagesVarious Sample Packages of our incredible neodymium magnets.
|High Temp MagnetsNeodymium magnets designed for use in high temperature applications
|Mag-Neato ToysHighly polished Strong Magnet Toys that make all kinds of strange noises when they come into contact with each other.
|Stepped DiscsDisc magnets with a stepped perimeter provide a good attachment solution for many applications.
|Stepped BlocksBlock magnets with stepped edges provide a good attachment solution for many applications.
|StarsVarious sizes of star shaped neodymium magnets
|Slot Car MagnetsSpecialty magnets for use in slot cars for improving traction. Happy racing!
|Horseshoe MagnetsClassic Alnico Horseshoe Magnets.
|Stir BarsStir Bar magnets used for stirring liquids. Popular for science experiments, research and brewing.
|Adhesive Backed MagnetsMagnets with pre-applied adhesive backing.
|Other ProductsMore magnetic and non-magnetic items.
|Magnetic ThumbtacksColorful magnets for the fridge, filing cabinet, locker or other steel surface. In 2 sizes!
|New StuffWe will update this category with our newest magnet additions.
|Levitation & GraphiteVarious items for use in permanent magnet levitation experiments.
|Viewing FilmGreen film used to view magnetic fields of permanent magnets.
|Steel BallsNickel Plated Steel Balls|
These are not magnets
|Telescoping Pick-Up ToolsTelescoping Pick-Up tools useful for mechanics or anyone that needs to retrieve metal objects.
|Magnetic Badge HoldersBadge holding sets designed to hold through clothing without using a pin.
|Steel Cups and WashersNickel-plated steel parts for latches or other closure applications. Insert one of our magnets into the cup and pair with a washer for a clean-looking magnetic catch.
|Gift IdeasMagnets make great gifts for almost anyone for any occasion!
|Fuel Line MagnetsSpecial magnet assemblies designed for easy placement around fuel lines. They can also be used on water lines or any other pipes.
|Pole IdentifiersDevices to identify the North and South poles of a magnet, or to identify the direction of the magnetic field near a magnet.
|Magnetic Jewelry ClaspsJewelry clasps for making your own jewelry or replacing the clasps on existing bracelets and necklaces.
|Double-sided AdhesivesDouble-sided adhesive dots used to adhere magnets to non-magnetic surfaces.
|Magnet Separating ToolsSpecially designed tools used to separate large magnets.
|Sewing MagnetsAlso called "Sew-In" magnets, designed specifically for use with fabrics as clasps and magnetic attachments.
|ApplicationsMagnets grouped by function for many popular uses.
|Refrigerator MagnetsPopular solutions for fridge magnets, both by themselves or used in craft projects.
|Fridge Magnet: ThumbtacksOur most popular fridge magnet solution comes in two sizes and many colors. Strong, yet easy to handle.
|Fridge Magnet: Tall CylindersTall cylinders are easy to grab. Great for when magnets will be moved often.
|Fridge Magnet: Thin DiscsThin discs have good holding strength, but are harder to grasp. Perfect for items that will stay in one spot for a while.
|Aquarium MagnetsPlastic coated magnets are often chosen as a waterproof solution for use in aquariums. Holds everything from water jets to coral frags. More colors available in our Plastic/Rubber section.
|Meteorite HuntingNeodymium magnets are often used to find and identify meteorites. Learn more in our article on Magnetic Meteorites.
|LevitationMagnets, pyrolytic graphite and kits for use in levitation experiments. See our article on Diamagnetic Levitation. Plus magnets often used in low friction magnetic bearings.
|Sensors & RelaysMagnets often chosen to activate Reed Switches & Hall Effect Sensors.
|Crafts & JewelryMagnets used in craft projects, jewelry, sewing and more.
|Science ProjectsPopular magnets and accessories for science projects and experimentation.
|Just for FunKits, hooks and more.
|Fuel & Water TreatmentMagnets often used around fluid lines/pipes for fuel or water treatment.
|Healing & TherapyVarious sizes and shapes often used for magnetic therapy applications.
|Models & MiniaturesPopular magnets for modelers, wargamers, train enthusiasts and stock car racers.
|Tools & AccessoriesHandy tools and accessories for identifying poles or separating large magnets.
|Custom MagnetsCustom Magnets
|Best SellersSome of our best selling, most popular magnets!
Neo Mag Info
Neodymium Magnet Information.
Information on ways to order products from K&J Magnetics, and details about the various shipping options.
Neodymium Magnet Safety Information.
Neodymium Magnet Specifications, including physical properties, thermal characteristics, mechanical, plating options and more.
Our infamously huge, ever-growing list of Frequently Asked Questions.
The K&J Magnetics blog, including detailed articles about many magnet topics.
Fishing Wires Through Walls
Hang a Big Poster
Finding Studs with Magnets
Magnets Are Everywhere
Emergency! (Big Magnets are Strong)
Why are Magnets Shaped like Horseshoes?
More About Magnetic Separation
Make a Magnetometer
Magnetic Bottle Opener
Credit Cards and Magnetic Stripes
All About Magnetization Direction
Magnets Are Weird
iPhone Magnetic Measurements
Leverage & Friction
Magnetic Spice Jars
The Earth Is a Magnet
Adhesive Backed Magnets
Magnetic Water Treatment
How to Separate Strong Magnets
Diamagnetism and Levitation
Pole Climbing Robot
Hanging Art on a Wall
Steel Thickness Calculator
How Neodymium Magnets are Made
Reed Switches and Hall Effect Sensors
Hard Drive Destruction
Temperature and Neodymium Magnets
Magnetic Knife Holder
Sticky Business - How to Glue Neodymium Magnets
How Much Will a Magnet Hold?
Which Pole Is North?
Surface Fields 101
Glossary of Magnet Terminology.
A list of just some of the many ways neodymium magnets are used.
Who are K&J Magnetics?
Descriptions of some of the winners of our monthly magnet-giveaway contest.
Hanging Art Blocks
Magnetic Spice Containers
The Custom Magnet Request Form.
Pull Force Calculator
The Original K&J Pull Force Calculator, calculates the Pull Forces for a given sized disc, cylinder, block or ring magnet in 3 different test cases.
Repelling Force Calculator
Calculates the theoretical repelling force between to same-sized magnets.
Magnetic Field Calculator
Calculates the strength and direction of the magnetic field around a disc or cylinder magnet.
Steel Plate Thickness Calculator
Calculates the Pull Force of a magnet stuck to a steel plate of various thicknesses.
Calculates the magnetic field strength between two neodymium magnets separated by a small gap.
RoHS Compliance Statement
Our RoHS Compliance Statement in PDF format.
Our policies concerning payment, order cancellation, returns, damages, security and privacy.
How to contact us.
Track your order
Where are my magnets?
Affiliate Partners Program
Become a K&J Affiliate and earn money for directing traffic from your site to K&J Magnetics.
Downloadable charts showing the BH curves for our most popular magnet grades.
Build a Magnet Separator Tool
Instructions on how to build your own Magnet Separator tool, especially handy for separating large magnets.
Our view on saving fuel with magnets.
Building a Truncated Octahedron.
Descriptions of magnetization directions possible for many neodymium magnet shapes.
Some visualizations of magnetic fields.
Magnet Summary Page
Sortable tables showing most of our magnet shapes, including Pull Force and Surface Field values.
Sign up to receive our email newsletter, including exclusive discount codes.
Rubber Coat your magnets
So you want to rubber coat your magnets...
More information about your security with K&J Magnetics.
Select-a-Size Magnet Finder
A table of disc/cylinder or block magnets that helps locate a particular magnet based on it's size.
A list of product pages that include videos.
3/16" diameter x 1/4" thick
1/4" OD x 1/8" ID x 1/4" thick
Order by phone:
Order online for
No Minimum Order!
K&J Magnetics, Inc.
Your online source for incredibly powerful neodymium magnets