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Master Magnetics Round Base Magnets with Knob - 1.43' Diameter, 0.98' Total Height with 1' Diameter Knob, 16 Pound Pull, Chrome, Pack of 4, HMKR-45X4

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$9.90

$ 4 .99 $4.99

In Stock

About this item

  • STRONG HOLDING POWER: The Master Magnetics ceramic round base magnet with an easy-grip knob offers a powerful magnetic hold. Magnet holds 16 pounds on contact with 1/4" thick, flat, smooth ferrous plate in a vertical test. The force is 50% less on vertical surface holding against sliding force and less on steel that is painted, rusted, dirty or damaged.
  • VERSATILE APPLICATIONS: With its 1" diameter easy-grip knob with 0.425" clearance between top of magnet base and underside of knob, this product has many applications. It can be used in various settings, such as workshops, garages, kitchens, office, classroom, barbecue grill, lockers, hangers, auxiliary storage and more.
  • DURABLE CONSTRUCTION: Enclosed in a round nickel-plated steel cup, this magnet is built to last. The cup contains a ceramic, ferrite magnet. An easy-grip knob is attached to the cup for easy removal. This magnet includes a non-scratch liner.
  • EASY INSTALLATION: The round magnet makes it effortless to hold calendars, work plans, blueprints, maps and more to a metal surface. Its convenient design allows for quick and hassle-free installation, eliminating the need for additional tools or hardware.
  • MASTER MAGNETICS: We manufacture magnetic products for commercial, industrial, and consumer use. Our goal is to create reasonably priced products that make your life easier. Our products will help you realize the value of magnets and their many uses!


Hold blueprints, calendars, important memos, visual aides, work plans and more with these convenient, heavy-duty magnets. Ideal for warehouses, workrooms, offices and in the classroom. Each round magnet features durable nickel plating and easy-grip knob for positioning. Includes non-scratch liner to prevent marring. Master Magnetics was founded in 1976 and is currently located in Castle Rock, Colorado. We manufacture and distribute magnetic products for commercial, industrial, and consumer use.


GrilledCheese
2025-08-19 10:28:32
I love that these are super strong and hold a lot of weight without budging. I bought them because I wanted to add a pull handle to my metal workshop cabinet. I didn't want to drill a hole in it because I inherited it from my dad. It looks great - like it's always been there (see pics). Since I had a set of them, I discovered that they were even better for hanging my hacksaws and miter saw than the magnet hooks that I had been using. The round knob holds them more securely. This was a great find!
Bob
2025-08-04 10:28:43
These are strong magnets! They'll hold up quite a bit of weight. They're not so strong that you can't remove them. We wind paracord around them and use them outdoors. Over time, I'm sure they'll rust, but for now they've held up well in dry weather...
Larry
2025-07-08 12:15:55
I originally purchased this little magnet as a handle for aluminum roasting pans. A washer inside the pan and this little magnet on the top makes for a very affordable food cover, of any size. Since then I've used the magnets to hold a vinyl cover in place against the wind on a prep table. They also work well to mount documents, etc on metal cabinets.
Reviewer X, LA
2025-06-07 20:34:09
It's magnet. Reasonably strong for this small size ( aprox 1"diameter) . Bigger sizes available - use as needed. Product info on Amazon listing was reasonable - notes 40% loss of (weight) strength if on painted metal surface, etc.Packaging mediocre. Cardboard covers (discardable) not attached upon arrival. No product info on box. If you don't like them, then either return immediately or you'll be stuck.
stanzibar
2025-05-13 11:49:01
The motion sensor broke on my trash can so I bought these to use as a knob for opening the lid. Works great! Would buy again if needed.
L.B.Redd
2025-04-21 17:34:54
I love these, even though I just needed one. My "auto-lift" metal trash can's lid broke, so I had to raise the trash lid with "hand only" -- kinda yucky... especially after I had friends over. EW. So I found these guys, and one is all I needed -- now my trash can doesn't need to end up in the landfill . Win - Win.
J L.
2025-04-10 14:30:25
These are way smaller in person than I thought. They do seem sturdy and the lid locking mechanisms are strong! We will see how the glass holds up
asap
2025-04-05 15:38:47
Magnets have a strong grip for their size.
Zach
2025-03-21 14:06:15
It doesn't look like a magnet. You can hang things from the knob, anything on a string or chain.
Tom
2025-03-17 18:04:16
Was looking for the right size/strength magnets to be able to hang things around the van and these are perfect.Can easily hold lightweight blankets (Kelty bestie blankets) which we use as curtains or added insulation in our van. We also hang jackets, wet towels etc on these inside the van.Outside, we have been able to hold down tarps with these with no problems.
Customer
2025-02-28 17:56:27
Decent quality, they are quite strong but 16lbs might be stretching a bit.
Lyon
2025-02-05 12:15:21
We purchased these to use on our cabin wall on a cruise. They worked perfectly and could support a decent weight. Not a full backpack but an over the shoulder bag. They are small compact and easy to travel with.
Michael Chong
2025-01-14 09:04:20
Bought these for a cruise we recently completed. Works great to give us additional places to hang clothes, hats, bags in our cabin. No issues with the heaviness of the items used and were simple to remove from the wall with a straight pull.Very good product, you'll need them if you cruise.
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