10X 20mm x 10mm With 4mm Countersunk Hole Neodymium Rectangle Magnets N52
10PCS 20mm x 10mm x 3mm Countersunk Hole 4mm Neodymium Rectangle Magnets Strong Block. Size: 20mm x 10mm x 3mm With 4mm Countersunk hole (SIZES ARE APPROX). 10 Thread Repair Insert Nut Adapters Reducer M8/M10 Male to M6/M8 Female 20mm.