10mm x 0.5mm N52 neodymium thin magnets round discs 3/8in x 1/64in
ZDYWY 10 Pieces 15 x 4mm with 5mm Countersunk Hole Permanent Disc Rare Earth Fastener Magnets
MIN CI 50Pcs Strong Ring Neodymium Magnets with Hole, Small Permanent Round Rare Earth Magnets Heavy Duty, for Locker Refrigerator Cruise Crafts DIY Science Industrial Screws (10 x 5mm Hole 4mm): Amazon.com: