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Locking Mailbox Insert Main Page

Locking mailbox inserts add a locking compartment to specific mailboxes. We carry four different sizes. We carry locking mailbox inserts for the three different standard mailboxes (6" wide, 10" wide and 11" wide), plus a locking insert for the Caoital Mailbox made by Whitehall Products.

Mail gets pushed through slot. Slot bottom bent inward to restrict a hand from reaching in to easily steal your mail. See the photos and video below for more specific information on how locking mailbox inserts are used and installed.

These lockboxes are not vaults, but they do protect mail from a casual thief and it will offer an excellent visual deterrent. Once a mail thief sees your lockbox, he'll probably move on to an easier victim.

Play the VIDEO at the bottom of the page.

Do-it-yourself: Attaches inside your existing mailbox by drilling one hole in your mailbox floor and then fastening the lockbox in-place by tightening just one screw (screw included). This special screw uses a lock-nut that cannot be loosened from the underside.

Click the picture below that corresponds to whatever size locking mailbox insert you need. Don't guess on the size! If you order the wrong size, it will cost you both time and money for all the unnecessary shipping charges to exchange for another size.

Whitehall locking mailbox insert

Three standard mailboxes

This picture shows the 6", 8", and 11" wide basic common standard type rural mailboxes.

These are the lockboxes that correspond to the three common size mailboxes pictured at left.

3 mailboxes with locking inserts

Each lockbox is designed for a specific mailboxes.
Whitehall Mailbox

We also carry a lockbox for the Whitehall Mailbox

Small Locking Mailbox Insert
5.75" wide locking mailbox insert

Medium Locking Mailbox Insert

7.5" wide locking mailbox insert

Whitehall Capital Mailbox locking insert

Whitehall Mailbox locking insert

Large mailbox lockbox

10.5" wide locking mailbox insert.

INSTALLATION TIP: It is very important to follow our installation instructions and be sure the threads of the machine bolt we include go downward and stick out under the mailbox floor. Use the "lock-nut" we include to fasten the lockbox in place. Lock-nuts have vinyl threads to prevent anyone from backing the nut off. To loosen that bolt, you would need a key to the lockbox in order to hold the machine bolt head. Otherwise, the bolt/locknut will just spin and spin. Some people mistakenly think the threads go upward. That is wrong. The bolt going upward into the lockbox gets in the way of easily removing your mail.

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