Neodymium Round Magnet with M6 Male Thread, 90 lb or 150 lb Round Magnet with Bolt Stud Mounting Magnet for Lighting, Camera and Other Brackets (4, 90lb Magnet): Amazon.com: Industrial & Scientific
Small switchable multi-angle welding magnet (45° x 90° x 135°) - 13kg / 30lbs
Amazon.com: Magnetic Welding Jig,Dual Switch 90 Degree Magnet Welding Fixture Strong Magnetic Welder Jig Holder : Tools & Home Improvement
DIYMAG Neodymium Fishing Magnets, 200 lbs(90 KG) Pulling Force Rare Earth Magnet with Countersunk Hole Eyebolt Diameter 1.75 inch(44mm) for Retrieving in River and Magnetic Fishing - Walmart.com