Magnet Expert 32mm Dia x 8mm Thick x 5mm c/Sink N42 Neodymium Pot Magnet [1.26 x 0.31 x 0.2"] - 44kg Pull [97 lbs], 1pc: Amazon.com: Industrial & Scientific
5mm X 1mm N52 neodymium thin magnets round discs 3/16in x 1/32in
ZDYWY 10 Pieces 20 x 4mm with 5mm Countersunk Hole Disc Fastener Magnets Rare Earth Refrigerator Neodymium Magnets - 0.79 inch D x 0.16 inch H with 0.19 inch D Screw Hole: Amazon.com: Industrial & Scientific