Mailnut™
Mailbox
Magnet

Keeps your mailbox door closed!

Secure Your Mailbox Door

The Mailnut™ adds extra protection to your mail delivery system. It is easy to attach to any rural style mailbox, including models made of wood, metal, and plastic.

A strong, neodymium magnet adds firm closure and security to your worn mailbox, old rusty relic, or even a brand new mailbox! Mailnut™ attaches inside your mailbox to save you time and money and provide an easy no-tools mailbox repair system.

Extra Protection

Easy Installation

No Tools Required

Holds in Strong Winds

Works on New, Used, or Bruised Mailboxes

Stiff winds are no match for Mailnut!
Field tests show the Mailnut can withstand 70+ MPH winds on a standard size rural style steel mailbox.

Easy mailbox door repair. Enjoy free shipping!

Made in the USA

Buy the Mailnut™ Mailbox Repair Kit

Mailnut™ Classic

Mailnut Mini Magnet

Is your mailbox magnet or catch worn out? The Mailnut™ Original will keep your mailbox door closed, even in stiff winds. Neodymium magnet attaches directly to the door for quick mailbox repair. Choose the Mailnut™ Original if you have a standard size metal mailbox; it works on most brands of mailboxes.

$29.99

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Mailnut™ 3X

Mailnut Mini Magnet

Keeps your extra large, heavy duty, or custom mailbox door closed. A sturdy metal mailbox door catch plate is also included. Choose the Mailnut™ 3X if you have a Whitehall Capital mailbox with a heavy door plaque or a Gaines Keystone mailbox with wornout springs. The Mailnut™ 3X is also works well on jumbo-sized rural mailboxes.

$49.99

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About Mailnut™

Mailnut™ provides an easy mailbox closure system at a reasonable cost. The mailbox magnet provides firm closure to just about any rural style mailbox door. The Mailnut™ Original withstands wind speeds of up to 70 mph during field testing. This product will save you time and money. Mailnut™ does not require the use of specialized repair tool. Mailnut™ is not sold in stores.

This innovative product was invented by John J. Farrell, Jr. owner and founder US Post®. He created this time and money saving product after hundreds of homeowners were paying to have their mailboxes replaced just because the mailbox door wouldn't stay closed. He has always embraced an entrepreneurial spirit and is grateful to offer a product mail recipients can trust with rural style mailboxes.

Mailboxes Compatible with the Mailnut™ Mailbox Magnet

The following are a few examples of mailboxes that are compatible with our magnetic closure. Newer mailboxes may or may not have manufacturer's warranty against door closure issues please check with mailbox manufacturer prior to application.

BBQ Innovations Plastic Mailbox

BBQ Innovations Plastic Mailbox

Agri Supply Poly Mailbox

Agri Supply Poly Mailbox

Flambeau No.2 Plastic Mailbox

Flambeau No.2 Plastic Mailbox

Solar Group Heavy Duty Mailbox

Solar Group Heavy Duty Mailbox

Solar Group Classic Mailbox

Solar Group Classic Mailbox

Gibraltar Grayson Mailbox

Gibraltar Grayson Mailbox

Gibraltar Elite Textured Bronze Mailbox

Gibraltar Elite Textured Bronze Mailbox

Gibraltar Patriot Classic Mailbox

Gibraltar Patriot Classic Plastic Mailbox

Gibraltar Arlington Steel Mailbox

Gibraltar Arlington Steel Mailbox

Ferguson Architextural Mailbox

Ferguson Architectural Mailbox

Cambridge Architextural Mailbox

Cambridge Architectural Mailbox

Ambrose Mailboxes

Ambrose Mailboxes

Cedar Wrapped Steel Mailboxes

Cedar Wrapped Steel Mailboxes

Mailnut Magnet Testimonials

Testimonials

After reading the reviews on the MAILNUT I ordered two (one for my neighbor). The mailbox I installed it on had a lip that was to keep the door closed; however, the door was consistently standing open. The installation of the MAILNUT is simple - just remember to clean the surface with alcohol as you are "sticking" a piece of commercial velcro to the interior mailbox side. After the installation was completed I found the magnet does provide ample pull to keep the mailbox door closed at all times. I am very pleased with this unit and only wish I had known about this earlier! A good product!

— Owen L. Bouma

Does exactly what it says. It's holding up fine after several months. Appears to be ready for the long haul.

— RJF

Was tired of coming home just to see our mailbox wide open. Needed to keep door from being blown open during stormy/windy weather. Worked for both! Mailbox door always in place (even after storms, rain, windy days)...unless of course someone forgets to shut the door after retrieving our mail.

— Faith Love

Great product for those mailboxes that always have their door flopped open. I purchased a MailNut about a year ago and it works perfectly. The commercial grade Velcro holds fast. Don't replace your mailbox just because the door will not close, buy a MailNut. Installation time: It will take you longer to walk to the mailbox than it does to install the MailNut. No tools required. Just be sure to place the matching magnet and metal door plate correctly. You will not separate the commercial Velcro once you snap it in place.

— Max D Nettleton

Love the product. Bought one before.

— Lawrence Burgreen

Frequently Asked Questions

Will Mailnut™ work if my door is hanging off or has a broken hinge?

Mailnut™ works best and is recommended when your mailbox door has full closure and the door and hinges are in place. Mailbox should be mounted properly to the post.

Will Mailnut™ work if the inside of my mailbox is rusty and/or has peeling paint?

For best results, mount the 3M dual lockpad to a clean, dry surface. Mailnut™ packaging includes: directions, a sterile alcohol prep pad, a 2" x 2" sand paper square, and a wooden scrape stick to assist in preparing the mounting surface.

How can I be certain Mailnut™ will work on my mailbox?

There are hundreds of different mailbox models that have been created over the years and to test Mailnut™ on every mailbox model that has ever been sold would be virtually impossible. So as a general rule if your mailbox door closes over the outside of the mailbox Mailnut™ is most likely to work. However, if your mailbox door closes into the inside of your mailbox Mailnut™ would most likely NOT work.

Can I purchase Mailnut™ in bulk for my neighborhood/community?

Yes, we offer discounts for bulk purchases and Home Owner Associations. Contact us today.