Neodymium Pot Magnet with Threaded Hook 75mm diameter x 98mm W_41mm or alerting others to safe Size:S or alerting others to safe operating protocols on kit and equipment like fuel types and safe loads lighting and decorations just take care not to expose them to the elements for prolonged periods to protect them from corrosion 5 11 AMFYPE20 20 4 15 7 37 9 21 AMFYPE25 25 5 17 8 42 22 37 AMFYPE32 32 6 18 8 47 34 56 AMFYPE36 36 6 18 8 47 41 68 AMFYPE42 42 5 or 6 20 9 47 68 97 AMFYPE48 48 8 24 11 Magnets on a vertical surface (of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description