Disc-shaped retaining magnets are characterised by their flat design. They efficiently and reliably assist with attachment when subsequent, temporary or portable attachment is needed.
A retaining magnet is a good option for fixing items in place without causing any damage, and some have rubber jackets to further protect the contact surface. Fixing methods vary, but for those magnets which will be screwed in place, ie. with a tapped hole or through bore, it is important that the screws be made of non magnetic material in order to avoid affecting the magnetic forces. Other fixing opting include gluing or shrinking in place, or the use of the threaded bush or stud incorporated in the magnet.