Review on 50Pcs Neodymium Magnets With Countersunk Hole And Stainless Screws - Strong Rare Earth Magnets Disc For Locker, Tool Storage, Crafts By MIKEDE by Ted Boone

These magnets are a very strong to the point where you don't want to put two of them face to face or will be a tough day getting them apart. I have a couple screwed to the sides of my cabinets to hold tools. I attached some short pieces of wood so I can pull them off of whatever I put them on to (think of a dart). I've used them on the table saw like this as a stop block so I could make repeatable cuts with my miter gauge. I also use them on the refrigerator and you can put many, many pieces of paper behind them!Out of the 24, I believe I purchased, I have not broken or even chipped or cracked any of them.If you have say a shed door that won't stay closed due to the wind or the construction of it, these magnets would definitely hold the door closed. A magnet on one side and a screwed on washer to the other side would hold the door shut even in heavy wind.The face of these magnets are where the strength comes from, the sides and back are not very magnetized due to it being inside of a metal cup.