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Internet #300034939

Model #HM200B00

Store SKU #1001989994

Hamilton Premium, Black, Large, Locking, Aluminum, Post Mount Mailbox

  • Durable cast aluminum construction that is resistant to corrosion
  • Large mailbox accepts letters, small parcels and magazines
  • Concealed locking access door for protection against theft
  • View More Details
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Product Overview

The Hamilton locking post-mount mailbox will bring quality and craftsmanship to any curbside landscape. This mailbox is made from heavy-duty cast aluminum and features a weather durable powder-coated finish that's also rust-resistant. Decorative embellishments such as an embossed U.S. Mail text and eagle add character and style to the unit. The mailbox serves as a full service locking unit providing added security from theft. The extra-wide slot provides plenty of room for high volume mail delivery and the large capacity mailbox holds several days of mail.
  • Concealed locking compartment protects mail from theft and includes two mailbox keys for homeowner access to mail
  • Constructed from heavy-duty cast aluminum for maximum strength and durability
  • Delivery slot measures 12.56-in W x 1.75-in H
  • Outgoing mail can be fastened to mail clip inside front door, while side access door allows for mail retrieval away from traffic
  • Large capacity accommodates several days of mail including magazines, padded envelopes, and small packages
  • Smooth black finish is powder-coated to withstand rust and elements
  • Some assembly required, mounting hardware sold separately
  • Match with Gibraltar Mailboxes posts with the designation letter C
  • Recommended with the Callaway pedestal mailbox post

  • California residents

Additional Resources

From the Manufacturer

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Hamilton Premium, Black, Large, Locking, Aluminum, Post Mount Mailbox
Hamilton Premium, White, Large, Locking, Aluminum, Post Mount MailboxClassic Black Post Mount Mailbox
BrandArchitectural MailboxesGibraltar MailboxesGibraltar Mailboxes
NameOasis Classic Black, Extra Large, Steel, Locking, Post Mount Parcel Mailbox with High Security Reinforced LockHamilton Premium, Black, Large, Locking, Aluminum, Post Mount MailboxHamilton Premium, White, Large, Locking, Aluminum, Post Mount MailboxClassic Black Post Mount Mailbox
Mailbox SizeExtra LargeLargeLarge
Access TypeFront OnlyFront OnlyFront OnlyFront Only
MaterialGalvanized SteelAluminumAluminumAluminum
Mailbox Capacity (cu. in.)2256125012500
IncludedFlagsFlags,Keys,MailboxFlags,Keys,MailboxMounting Hardware
FeaturesOutgoing Mail IndicatorCorrosion Resistant,Decorative,Fade Resistant,Outgoing Mail IndicatorCorrosion Resistant,Decorative,Fade Resistant,Outgoing Mail IndicatorNo Additional Features
Mount TypePost MountPost MountPost MountPost Mount
View ProductView ProductView ProductView Product



Assembled Depth (in.)
12.6 in
Assembled Height (in.)
17.4 in
Assembled Width (in.)
18 in


Access Type
Front Only
Assembly Required
Color Family
Corrosion Resistant,Decorative,Fade Resistant,Outgoing Mail Indicator
Hardware Color Family
Mailbox Capacity (cu. in.)
Mailbox Size
Mailbox Style
Mount Type
Post Mount
Product Weight (lb.)
14.8 lb

Warranty / Certifications

Manufacturer Warranty
90 Day Warranty
U.S. Postmaster General Approved

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.4
    out of 57 reviews
  • 77%recommend this product
Filter by:
Showing 1-10 of 57 reviews
Stuck my arm right in
If you have a slim arm as I do, you can still get mail out threw the slot. I will be returning it. Very disappointed because it is so cute.
    • Recommended
    looks great and fits perfectly with my black fence. Love the lock box feature.
    looks great and fits perfectly with my black fence. Love the lock box feature.
    • Verified Purchase
    • Recommended
    Great looking mailbox
    I got this mailbox to add some curb appeal to my home, and it does just that. The mailbox itself requires very little assembly--just attaching the decorative finial to the top and the knob on the door. The instructions are printed right on the side of the box. The base must be removed to attach to the post, but it's a really simple process. The hardware to attach to the post is not included with the mailbox, but it did come with the post that I installed at the same time. It only requires four bolts. This thing looks great! It replaced our old generic rural mailbox and added a touch of class. The box has plenty of room for mail. Mail security has never been a problem in our neighborhood, but for those looking for extra security, this box has a lot to offer. The mail slot has enough room for the mail to be dropped in, but a thief wouldn't be able to reach in to take anything back out. The side door and lock are sturdy. The entire box is well made, and I can't say enough about how nice it looks.
    • Recommended
    2 found this review helpful
    I received this mail box today it came well packed with no damage. It was very easy to put together I just had to attach the top decorator piece with 2 screws. This mail box is not as heavy as it looks because it's made of aluminum. The mail box is a lot larger than my other standard one which is good because of my many package delivery's. The mail box has numerous mounting holes on the bottom which make it very easy to mount. I am very happy with the quality of Gibraltar Hamilton series mail boxes.
    • Recommended
    3 found this review helpful
    very solid
    Try the Gibralter Hamilton black locking aluminum large post-mount mailbox for a great look. I needed a mailbox to replace my old one that was stolen. This is a heavy duty cast aluminum large mailbox. It has a powder coated finish that holds well to the weather. I like the locking access door. I think I will mount this to a 4 by 4 post cemented in the ground. This is a very solid and great looking mailbox.
    • Recommended
    Black Locking Aluminum Large Post-Mount Mailbox
    Black Locking Aluminum Large Post-Mount Mailbox is beautiful addition to any house or home place. I plan to install this at a rental property once the post is received to mount it. I know that I will have to mix and place about 200 pounds of concrete in the ground with lag bolts to secure this product since it is made from all aluminum and the rental house is in the rural area of our county
    • Recommended
    Paint chips and it leaks
    The paint began to chip away from this after a year here in Southern California. Also, whenever it rains, the mail always get wet.
      • Recommended
      Not what expected
      The post split at the bottom while installing. The box is lightweight and rickety and door does not align to close. This will easily be knocked over if plow pushes snow anywhere near it. I will be returning.
      Response from Gibraltar MailboxesFeb 17, 2022
      Hi Melissa. We're so sorry your mailbox combo did not meet your expectations. We'd like to find out a little more on what went wrong here so Gibraltar's customer support team will be reaching out to you soon. If you'd like to contact us sooner, please call us at 800-647-7063 or email us at solarcs@gibraltar1.com. GibraltarMailboxes
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
            Showing 1-10 of 57 reviews