DIYMAG Rubber Coated Magnets, 4 Pack Magnetic Mount Base with M5 Studs

I really like these little magnets. I recently put metal siding on my barn and didn't want to have to drill holes in the metal to mount things on the outside. These are a great substitute and the what's even better is if I decide I want to change where it's mounted, I just pull it off and stick where I want it. Appear to be pleanty strong, haven't had anything get moved or knocked off since I've started using them

These magnets are excellent! I have used them for two projects so far and couldn't be happier. First I have some medications that I need to keep accessible at all times. I drilled a small hole through the cap of a jar and attached this magnet, then filled it with my meds and stuck it to my fridge. It holds very securely and keeps them easy to grab when needed. Perfect solution! I also have one of those round cat tunnels that look like a donut. My cat runs around inside it and it has fallen a few times with her inside ... yikes! So I added three of these to the bottom and stuck it on top of the fridge where she likes to hang out. It doesn't budge no matter how wild she plays. Another perfect solution! The screw that fastens into the magnet is unusual and is what makes this design perfect for my needs.

Good "rubberized" magnets with decent strength. M5 screws have a bugle head making it a little odd to have a lock and flat washer. For my application the screws are a bit to long unless the washers are used. I will need to go find a shorter M5 screw

Used these to mount some power distribution units on some metal I-Beams in my house, and the grip is so good you'd swear they're screwed in. These have become my go-to for anything I need to "mount" to a magnetic surface.

These work well. Easy installation, and strong hold.