Magnet, magnetic square, 90/45 degrees, 112 lbs pull
10 Pack Neodymium Magnets, Permanent Rare Earth Magnets with Eyebolt, 50 LBS (23 KG) Magnet Hooks with Countersunk Hole Eyebolt for Retrieving in River and Magnetic Fishing: Amazon.com: Industrial & Scientific
LOVELY® Atlas Carbon Steel T Magnet Hi Power 40 Kg Capacity for lifting Flat Iron Plate, Sheet : Amazon.in: Home Improvement
Source Super Strong 40kg Magnetic Capacity 500A Magnetic Welding Ground Clamp 4'' Welders Magnetic Earth Clamp on m.alibaba.com