The Mail Boss In-Ground Steel Mounting Post is constructed of heavy-duty 10-Gauge/14-Gauge galvanized steel with a durable commercial grade powder-coated finish for weather resistance. Mail Boss mailbox posts are designed with 4x4 standard mailbox post dimensions and also have pre-drilled holes for fitting securely over treated wooden 4x4 posts for deeper installations.
- Commercial grade, powder-coated finish for added durability and corrosion resistance
- Designed for standard mailbox post installation in concrete
- Compatible with all Mail Boss branded post-mount mailboxes
- Does not require an additional mounting/adapter plate
- Can also be used as a sleeve with a wooden post for deeper in-ground installations
- Pre-drilled holes; 4x4 mailbox mounting bolt pattern
- Engineered to support up to 250 lbs. evenly distributed