Home » Shop » Heavy-Duty Locking Mailbox – Large Size Heavy-Duty Locking Mailbox – Large Size$199.00 The USPS approved Heavy-Duty Locking Mailbox delivers unrivaled security and protection against mail theft, identity theft and vandalism and is the most affordable security mailbox available. Choose Color: Choose an optionBlackTextured BronzeGraniteOff-WhiteClear $ Add Mailbox Post * Select Option No Mailbox Post Add Standard Mailbox Post [+$119.00] Mailbox Post Color * Select Color Black Bronze Granite Off-White Heavy-Duty Locking Mailbox - Large Size quantity Add to cart SKU: MB-MML Categories: Locking Mailbox, Locking Post Mailboxes Description Description The USPS approved Heavy-Duty Locking Mailbox delivers unrivaled security and protection against mail theft, identity theft and vandalism and is the most affordable security mailbox available. Virtually impenetrable, it features a commercial grade 12-disc wafer lock and a patented anti-pry latch locking mechanism to prevent leveraged entry. Made of 12-Gauge and 14-Gauge powder-coated galvanized steel, the Mail Boss will not bend or break. With the revolutionary patented Fast Trak Mounting system, homeowners can install the Heavy-Duty Locking Mailbox in just minutes. Everything is included for your convenience – 3 keys, reflective house numbers, drill bit and mounting hardware. Generous size accommodates letters, magazines, mail bundles and check boxes Patented anti-pry latch locking mechanism featuring a chrome-alloy tempered steel hook cam Patented fast-trak mounting plate for quick installation Locking access door with commercial grade high security 12 disc wafer lock deters drilling and picking Mail delivery slot approximately 2″ high x 10.25″ wide Durable power-coated finish available in Black, Granite, Textured Bronze, or White Matching heavy duty mailbox post (+$119.00) Stainless steel hinges for ease of use Constructed of welded 12 and 14-Gauge electro-galvanized steel to withstand weather, impact, and vandalism Includes 3 laser cut keys, installation hardware, instructions, vandal-resistant flag, and reflective house numbers Approved by the postmaster general Free Shipping by UPS Ground included Dimensions: 21″D x 13.75″H x 11.25″W Weight: 40 lbs. Mailbox Post Add-on: There is an optional 43″ long Standard Mailbox Post available. It’s a 4″ square tube that can have approximately 12″ sunk into a bed of concrete. The interior of the square post is large enough to fit a treated wood 4×4. If you insert a wood 4×4, you can just dig a deeper hole and plant the post without concrete (or maybe just a little bit to make it solid).