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Architectural Mailboxes Oasis® TriBolt™ Secure, Anti-Pry Locking USPS Approved Heavy duty, Steel Metal Post Mount Mail Box for outside, Black Extra Large Curbside Mailbox with Magnet & Waterproof Door

Free shipping on orders over $29.99

$131.49

$ 51 .99 $51.99

In Stock

1.Color:Black


About this item

  • Triple Lock Power: Reinforced pry-resistant, three-point locking mechanism makes this locking mail box for outside a fortress for your mail.
  • Built Like a Tank: This heavy duty mailbox is made of galvanized steel, & built to last—perfect for anyone needing durable metal mail boxes for outside.
  • Dry Mail, Every Time: Weather-Tite stripping around the door keeps rain, snow, & dirt out—ideal for long-lasting residential mailboxes for outside.
  • Built for Big Deliveries: This extra large mailbox offers oversized space for multiple large packages, plus all your other curbside mailbox deliveries.
  • USPS Approved Peace of Mind: Built tough this USPS Approved locking mailbox is one of the most reliable mailbox with lock for outside (includes 2 keys).
  • Simple Setup: Just attach the flag—assembly is quick & easy. Reminder: mounting hardware comes with all Architectural Mailboxes' compatible posts, not the mail box.
  • Post "H" Compatible: Made to mount effortlessly on all Architectural Mailboxes posts marked with letter H.
  • Secure Magnetic Closure: Keeps mail box door tightly shut to protect your curbside mailbox deliveries from wind and rain.
  • Modern Mailbox Style: Sleek, minimalist design - this black mailbox complements any home curbside.
  • Designed in the USA: Thoughtfully engineered with a focus on durability, function, and style.


Upgrade your home or business security with this USPS Approved secure mailbox for outside, designed for superior protection and durability. Featuring an oversized hopper door and internal security baffle, this package mailbox easily accepts mail bundles, packages, and padded envelopes while preventing unauthorized access. What sets this lockable mailbox apart is its enhanced three-point locking system, providing superior security by securing the door at multiple points to deter tampering. The pry-resistant lock bracket adds an extra layer of protection, ensuring your deliveries stay safe. Constructed from heavy-duty metal mailbox materials, including powder-coated heavy-gauge galvanized steel panels and stainless steel hinges, this modern mailbox is built to withstand any weather. The waterproof mailbox design, complete with WeatherTite™ rubber seals, keeps your mail clean and dry in any condition. With its large mailbox storage compartment and lock mailbox system, this high-security solution is perfect for those who prioritize safety without sacrificing style.


Michael
Reviewed in the United States on April 5, 2025
Love this mailbox. Tenants love it, too. Mail delivery is secure now
Hawaiian Boy
Reviewed in the United States on February 23, 2024
This mailbox is perfect for sense of security. Easy to install, great looking and sturdy
Brad
Reviewed in the United States on November 12, 2024
Delivered quickly, installation instructions included. No surprises. Extremely happy - sturdy, magnetic closer, prevents access to delivered mail and has a place inside to hold outgoing mail.
Jeffery G. Haskett
Reviewed in Canada on October 21, 2024
Good mailbox for security and safety. Only issue is the opening does not allow small boxes to go through so have to go to post office to pick them up.
CLee
Reviewed in the United States on October 13, 2024
Nice size for receiving small to medium packages. Easy to install and very solid. Comes with two keys. I like the safety flap for when the mail drops to the back of the box
CJGS
Reviewed in the United States on April 4, 2024
We can't always be here when the mail arrives. Sometimes it's a medicine delivery or other small package. Though we haven't had any theft issues that I know of, it was a concern that these might sit a day or two in an unsecured mailbox. We are very happy with the quality of the mailbox. The project took about half a day to dig the hole (rocks galore) mix the concrete to pour around and into the mounting stand. Someone without the ability to do that might need help. Occasionally pages of a magazine/paper might catch into the upper chamber, but even so, it can't be pulled back out without opening the locked area. Now we just have to find a better way to discourage the birds from using it for their personal bathroom...lol.
buzzy
Reviewed in the United States on April 23, 2024
Easy to install, nice size, sturdy. I had a similar one that got hit which got tweaked but took a beating even though I think a car hit it. This one appears stronger and upgrade from that one (a little heavier). I expect to be happy with it. It opens easily and holds a lot of mail. I also purchased numbers on here to put on it.
larry
Reviewed in the United States on April 12, 2024
Great product. Now my only concern is USPS delivering my items to the wrong address! (Yeah, postal employees, I'm still mad about that!)
kevin patton
Reviewed in the United States on March 17, 2022
It worth it do no more worrying on the mail has a spot for out going mail and yes easy to lock and 2 keys so you get what you get install well best to get all 3 parts and install only take like a a hr and half