KOMOHOM Mailbox Mounting Bracket — 4mm Steel Plate for Post-Mount Mailboxes

Overview

Upgrade your post mounted mailbox with a purpose built mounting plate from KOMOHOM. Forged from cold rolled steel at 4mm thickness, this plate delivers a sturdy anchor where it matters. It’s 266 percent thicker than many common brackets, signaling strength and long lasting performance for everyday use.

Designed to function as both carrier and reinforcement, the plate connects the mailbox to the post while adding rigidity to the installation. Expect a steadier door swing, better alignment, and a robust base that holds up against wind and weather over time.

Key benefits at a glance

• Widely applicable: suitable for most residential and commercial mailbox installations, providing a stable base and reinforcement.
• Secure mounting: anchors mailboxes to posts or walls for a long lasting, sturdy hold. Note: not suitable for mailboxes without bottom mounting holes.
• Simple installation: straightforward design supports quick setup; compatible base hole sizes include 10x4, 5x5, 7x3-1/4, and 3-1/4x3-1/4. Mounting hardware is included.
• Durable construction: built to resist outdoor conditions and daily use with a weather resistant profile.

Installation essentials

• Hardware included for fast, tool ready installation.
• Supported base hole sizes: 10x4, 5x5, 7x3-1/4, 3-1/4x3-1/4.
• Bottom mounting holes are required for secure attachment; not suitable if your mailbox lacks them.

Brand compatibility and real world use

This mounting plate works well with a range of popular mailbox brands, including Mail Boss, Architectural MAILBOXES, Gibraltar, hykolity, ShoppingOnBed, and adoorn. It suits both new installations and reinforcement projects, offering a versatile solution for varied posts and columns.

Notes for sizing and fit

Please verify fit before purchasing. The plate is not universal; confirm that your mailbox has bottom mounting holes and that the base hole size matches one of the supported measurements above.

In everyday use, you may notice a firmer overall feel when opening the mailbox door, improved alignment, and a more stable setup. These outcomes depend on proper installation and the specifics of your post and mailbox configuration.