It is a very strong magnet

og denne magnet har skruehul til undersænket skruge M8 (8

From the well-known Swiss brand Trendform

WARNING: This magnetic foil cannot be used on magnetic glass boards

hvordan vi har gjort det i CPH Village

Undersænket pottemagnet, Ø60 mm. - Neodymium knivskinne It is a very strongCountersunk pot magnet 60 mm. The magnet is often used for machines in ex. agriculture. A very strong magnet. Read the whole description before you buy a strong power magnet. Diameter: 6. 0 cm. Height: 1. 5 cm. Screw hole: 8. 5 mm. Strength: approx. 115 kg. This magnet can't be used on magnetic glass boards. Recommend for indoor use. SPECIFICATIONS: Strength: approx. 115. 000 g. Magnetisation: N42 Surface: nickel plated (NI) You can't use to of these