Small high-performance countersunk Neodymium (N42) magnets available in North and South pole on the countersunk face. 10mm x 5mm 3.2mm countersunk hole 2kg pull Triple coated 3mm screws required for fixing Ideal for furniture fixings, hanging artwork and keeping doors and drawers closed, countersunk magnets have a central hole which allows them to be fixed to non-magnetic surfaces with a screw. If your project requires magnet-to-magnet application, use North pole with South pole magnet to avoid the magnets repelling.