Countersunk Magnets, also known as Round Bese, Round Cup, Cup, or RB magnets, are powerful mounting magnets, but with neodymium magnets steel cups with a90 countersunk holes on the working surface to accommodate a standard flathead screw. The screw head sits flush or slightly below the surface when affixed to your product.
Countersunk hole Pot magnets with screw holes - also called countersunk magnets - are compact magnet systems with a steel shell and a counter-sunk hole for easy mounting. The bolt with a flat countersunk head falls flush with or on the top of the magnet. This optimizes the attracting surface of the pot magnet.
Thanks to the shell of these magnet systems, the magnetic field
strength increases and the pot magnets are more resistant to corrosion or chemicals. Pot magnets have a single attracting surface. This precludes dispersion of the magnetic field.
Pot magnets with countersunk holes are available in various sizes and types such as neodymium, ferrite and AlNiCo.
Available in various sizes
Available in various qualities
Deliverable from stock
Buy magnets online
Easy to install
Countersunk magnets come in two basic variations: all-magnet countersinks, which are solid pieces of magnet, and POT magnets, which house magnets inside steel casings.
The all-magnet countersinks have two advantages:
They're generally a little bit cheaper since you're not paying for the housing.
Their magnetic field is generally a little stronger because there's no barrier (i.e., the housing) around them.
The big drawback to all-magnet countersinks is that they're brittle.ln many cases, these countersinks are made of solid neodymium. During installation, over-torquing a screw can cause the neodymium to crack, breaking the countersunk.
The POT magnets are a bit stronger. Thanks to the metal housing, you don't need to worry as much about handling, especially during installation. This protective cover also allows for the use of ferrite magnets instead of neodymium, though it's a less common choice.
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