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These Neodymium hook magnets are available in a pack of 2. Comes in either black or silver. Incredibly strong hooks. Tested against 20mm steel for pull force. Shear force may be calculated differently.
On 1mm thick steel surface; these hooks can pin 55 sheets of A4 paper, with a sheer force rating of 8 pounds and a pull force rating of 18 pounds. At 2mm; they can pin 70 sheets, with a sheer force of 15 pounds, and a pull force of 32 pounds. At 3mm; they can pin 70 sheets, with a sheer force of 21 pounds, and a pull force of 54 pounds.
Amazingly useful magnets that are great as kitchen refrigerator magnets and a good addition to any magnetic whiteboards. Great for pinning down postcards, your kid's art, and reminder notes. Additionally, they are used to hang all sorts of things including coats, keys, and heavy bags! They also make great affordable gifts that your friends and family will actually use!
A magnet's performance is based on a number of variables including material, grade, size, shape, design, thickness, and the magnetic surface it will attract to. Usually, the magnetic pull is measured off of a steel surface and varying thickness of the steel may increase or decrease the magnetic pull.
WARNING! Please keep these magnets away from the reach of small children and pacemakers. Swallowing magnets can be harmful and will require medical attention.
CMS Magnetics - Magnets for Office, Refrigerator, Craft Board, Magnetic Dry Erase Whiteboard, Bulletin, Calendar, Paper Holder, Hooks, Knobs, Clips, Push Pins, Dominos, Key Ring (Ceramic or Neodymium) Styles: Ceramic Balloon Hooks Ceramic Hooks X-Small (32mm diameter) Ceramic Hooks Small (40mm diameter) Ceramic Hooks Medium (47mm diamater) Ceramic Hooks Large (52mm diameter) Ceramic Hooks X-Large(57mm diamater) Neodymium Hooks Small (25mm diamater) Neodymium Hooks Medium (40mm diamater)