Gibraltar UMBS0B06AM Mailbox Mounting Board .060 Ga. 7.625" W x 12.875" L (3-Pack) Upgrade your mailbox installation with the Gibraltar UMBS0B06AM Steel Mounting Board, designed to deliver reliable strength and stability for both lightweight and heavy-duty mailboxes. This top-mount bracket is built from heavy-duty galvanized steel with a sleek black powder-coated finish, ensuring long-lasting durability and resistance to rust or corrosion in all weather conditions. Features ? Supports both light and heavy mailboxes ? Compatible with side or bottom mount mailbox holes ? Fits Gibraltar 4x4 wood or hollow posts ? Heavy-duty galvanized steel construction ? Black powder-coated finish for enhanced durability ? Includes all mounting hardware Specifications ? Brand: Gibraltar ? Model: UMBS0B06AM ? Color: Black ? Material: Steel ? Finish: Galvanized ? Gauge: .060 Ga. ? Mount Type: Top Mount ? Dimensions: 7.625" W x 12.875" L ? Package Quantity: 3-Pack ? Included Components: Mounting screws ? UPC: 046462012021 Compatible with mailboxes featuring either side or bottom mounting holes, this versatile bracket is ideal for use with Gibraltar 4x4 wood or hollow posts. The package includes all necessary mounting hardware for a secure, straightforward installation. Whether you're replacing a worn bracket or installing a new mailbox, this mounting board provides a dependable foundation with a clean, professional look.