CMS Magnetics Heavy Duty Neodymium Channel Magnets w/Countersunk Holes 45 LB Holding Power Mounting Magnets for Doors, Cabinets, Gun Holders - 8 Pack w/16 Screws Included

They are VERY strong, about 45 pounds pull, have mounting holes that will not crack the magnets when you tighten the screws, come with screws, and the channel amplifies the pull, and protects the magnet..They are very addictive, and I find myself buying them 32 at a time for all kinds of projects.Buy about six tubes of black Shoe Goo, and you too, and decorate your filing cabinets and tool chests, and camera tripods with all kinds of stuff!

First, consider that these screw holes do not pass through the actual magnet like some similar bar magnets available. The magnets themselves, like all neodymium, are brittle, and I wanted to avoid cracking a magnet from tightening a screw against it, hence my choosing these.They measure 2” long, 1/2” wide, and the screw holes are about 1/8” diameter, and 1-5/8” on center, and all these dimensions are accurate to within about .020”.I’m using these to hold a solar panel against a car body temporarily to charge the battery - I placed 3 layers of duct tacpe over the magnet to prevent scratching the paint.

I bought these to hold those motion sensing LED lights that come with a magnetic tape strip to hold them in place. That works well at home, but in the RV all the lights end up on the floor after a few bumps. Stronger magnets were needed.I demonstrated to my wife the perfect fit of this magnet by snapping it to the back of one of the lights. She was impressed until I found that my fingers were not strong enough to pull it back off again. A trip to the garage brought a pair of long-nose pliers that allowed me to grip the end of the metal channel and remove the magnet. I know she's impressed by my use of tools, elevating me above the average ape-man.This magnets work well, by the way. They'll hold a lot of other stuff too, and the metal channel focuses that grippy magnetic field to the front surface at the same time that it protects the brittle bar magnet. Genius. She's impressed by that too.

I like the strength of the magnets, they work excellent for the heavy items I wanted to hang out of the way.

This is A heavy Duty Magnet. Thank You...

The media could not be loaded. I used all eight in my homemade camper. Just one is enough to hold a heavy glass in the cup holder I built. I used two for a sub/12 volt outlet. I drilled out the mounting holes just a bit and used #8 pan head machine screws. I will definitely be ordering more of these seriously strong magnets.

Rusts extremely easily, magnets are very strong.

Purchased the other style which has the screws going through the magnet. Sure, more magnet surface is great but they kept breaking the brittle magnet. These resolve that. The magnet is also inset into the body just a tiny bit to help prevent breakage during undampered contact.