Elesa+Ganter GN 50.1 Magnet disc shaped, without thread
 Materials of the magnet:
- Hard ferrite HF, temperature resistant up to 200° C
- Samarium, cobalt SmCo SC, temperature resistant up to 200° C
- Neodymium, iron, boron NdFeB ND, temperature resistant up to 80° C
Retaining magnets GN 50.1 are a shielded magnetic system. Fixed in place by gluing or side-mounted thrust bolt (e.g. GN 913.2 grub screw with pointed nose).