• Group 8 - 34" height


    4C Horizontal Mailbox Replacement Parts

    USA Building Supplies offers 4C horizontal mailboxes that the customer can get replacement parts for. Replacement parts for commercial mailboxes can be tricky, therefore it is often best to have a seasoned professional at USA Building Supplies guide you through the process. Commonly ordered replacement parts for 4C mailboxes include;

    • tenant locks
    • captive locks for parcel lockers
    • tenant compartment doors


    Replacement resident locks for Std-4C mailboxes are universal regardless of manufacturer because this type of lock is specified in the postal specifications that the manufacturers must adhere to. USA Building Supplies allows the customer to buy the cylinder, cam, or cylinder cam combination together. Captive locks for 4C horizontal mailboxes can vary from manufacturer to manufacturer. Therefore, it is imperative to identify the manufacturer of the 4C mailbox you have. Typically, there is a manufacturer’s identification plate on the commercial mailbox. Tenant doors on 4C horizontal mailboxes are unique to the manufacturer; therefore locating the manufacturer’s identification plate again is vital. A representative at USA Building Supplies will also need to gather additional information if you need a replacement resident door including the size, finish, and door identification of the door and whether a replacement lock is needed as well. Additional parts are available for purchase for USPS-STD-4C mailboxes. Contact a representative from USA Building Supplies today for assistance.