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The 43 inch in-ground steel mounting post is made of heavy-duty 10- and 14-gauge electrogalvanized steel with durable powder-coated finish. (Mail Boss 7121)
The surface mount black base plate is constructed of 10-gauge galvanized steel with powder-coated finish for mounting mailboxes. (Mail Boss 7155)
The in-ground post can be paired with the base plate for versatility in installations over 4-8 inch curbs or sidewalks.
This mailbox mounting bundle from Mail Boss provides both an in-ground steel post and surface mount base plate for secure mailbox installations. The heavy-duty steel construction and durable powder-coated finish on both the 43 inch underground mounting post and surface mount base plate provide stability and weather-resistance. Together they allow mounting Mail Boss mailboxes on a variety of surfaces and depths.