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Product Description
Strong magnets often end up in the same basket as CCTV kit, so here is a plain read on what these are before you order.
The N52 Neodymium Disc Magnets 20mm x 3mm (SKU MAGNET-DISC-20MMX3MM) are rare earth magnets sold for industrial and craft applications. They are not a CCTV accessory, so treat them as a general-purpose magnet.
The numbers, in plain English
- N52: the strength grade of the neodymium material. N52 is a high grade among those commonly sold.
- 20mm x 3mm: a round disc, 20mm across and 3mm thick.
- Neodymium: a rare earth material that holds far more for its size than an ordinary ceramic magnet.
Check before you buy
- What it needs to grip. Magnets hold to iron and steel. Wood, plastic and aluminium are not magnetic, so a disc will not stick to them on its own.
- Where it will sit. Keep these well away from pacemakers, bank cards and magnetic storage such as hard drives, which includes the drive in a CCTV recorder.
- How you will handle them. Neodymium is brittle. If two discs snap together they can chip, so slide them apart rather than pulling them straight off each other.
Specifications
- Product Type
- MAGNET DISC
- Size
- 20MMX3MM
- Magnet Material
- Neodymium
Frequently Asked Questions
What size are these magnets?
Each disc is 20mm across and 3mm thick.
What does N52 mean?
N52 is the strength grade of the neodymium material, and it is a high grade among those commonly sold.
Will they stick to aluminium or plastic?
No. Magnets grip iron and steel, while aluminium, wood and plastic are not magnetic.
Can I keep them near a CCTV recorder?
It is best not to. Strong magnets can affect magnetic storage such as hard drives, so keep them well clear of the recorder.
