Product Description
N52 Neodymium Disc Magnets (30mm x 4mm) — where these fit in a CCTV setup
This listing (SKU: MAGNET-DISC-30MMX4MM) covers N52-grade neodymium disc magnets, 30mm in diameter and 4mm deep. N52 is one of the strongest commercially available neodymium grades, which is why these discs are described as suited to industrial and professional use rather than light craft work.
For CCTV buyers, disc magnets like this are commonly used for temporary or semi-permanent mounting of small equipment — for example holding a compact camera housing, cable, or bracket to a metal surface without drilling. That said, the source information here doesn't specify a pull force rating, so if you're planning to mount anything with real weight or exposed to wind and vibration (an outdoor camera, say), check the actual holding strength before relying on it as your only fixing method.
What to check before buying
- Size fit: confirm 30mm x 4mm suits the mounting point or bracket you have in mind.
- Surface: neodymium magnets grip ferrous (iron-containing) metal only — they won't hold to aluminium, brick, or plastic housings.
- Load: no pull-force figure is given in this listing, so don't assume it matches magnets sold elsewhere as "30mm x 4mm."
This is sold as a magnet only — no camera, bracket, or mounting hardware is included.
Frequently Asked Questions
What size are these magnets?
Each disc measures 30mm in diameter and 4mm in depth.
Can I use these to mount a CCTV camera?
They can hold small equipment to ferrous metal surfaces, but no pull-force rating is listed here, so check the holding strength suits your camera's weight and location before relying on them alone.
Will these stick to any wall or bracket?
No — neodymium magnets only grip ferrous (iron-containing) metal, not aluminium, brick, or plastic.
What grade are these magnets?
They are N52 grade, one of the strongest commercially available neodymium grades.


