This magnet in a steel pot has a countersunk borehole and can be fastened with a countersunk screw. Its design is identical to CSN-20, but this magnet is heat-resistant up to 150°C. This makes it especially suitable for the lighting industry and in industrial furnaces for attaching coated or glued parts.
The following screws fit into the CSN-HT-20, for example:
- Slotted countersunk wood screw: DIN 97 (3,5 mm)
- Cross recessed countersunk flat head screws (machine screw): ISO 7046-2 M3 (3 mm)
- Countersunk torx screws/hexalobular socket (machine screw): ISO 14581 M3 (3 mm)
- Hexagon socket countersunk flat head screws (machine screw): ISO 10642 M3 (3 mm)
The full adhesive force is achieved when the ferromagnetic counterpart is smooth and of sufficient thickness and when the pot magnet makes direct and full flush contact. Pot magnets already lose much of their adhesive force at a distance of only half a millimetre to the ferromagnetic surface. This characteristic is more pronounced in pot magnets than in other ferrite and neodymium magnets. You can find additional fascinating information on our FAQ page about pot magnet features