Magnetic assembly with hole Prof-Magnet B25, 4 pieces PMYP-B-25 has an extraction force of 14 kg*. The fastener consists of a metal body (steel), a neodymium ring magnet (NdFeB) stuck on it. Ring magnet with hole, has a central hole for the M5 screw (hole diameter 5.5 mm). The magnetic bra has an anti-corrosive nickel coating, which makes it possible to operate it not only indoors with a normal humidity of 50%, but also outdoors with an air humidity of more than 90%. Operating temperature range from -60 to +80 degrees Celsius. The weight of the B25 magnetic bra is equal to 25 G.

For type B magnetic fasteners, self-tapping screws, screws and bolts can be used, as well as bolts and hexagons. Since the fastener has a through hole, the head of the screw or screw is well “recessed” into the hole, thereby ensuring full contact of the magnet surface with the metal surface.

Pay attention!

* The maximum separation value is indicated under ideal conditions (test bench with Smooth steel sheet 15 mm thick). The magnetic clamping force for starting/shearing directly depends on the surface you are magnetizing it to. If the metal is thinner than 15 mm, uneven, with paint, rust, potholes or craters, the strength of the magnet will be significantly lower.

** The detachment force * * (when you hang the fasteners from the ceiling and the load hangs down) will always be several times greater than the sliding/shearing force (if you magnetize the fasteners, for example, on the refrigerator door).