Locking Mailbox Inserts -

This locking mailbox insert adds a locking compartment to any ordinary 6" wide standard mailbox. Sturdy construction with 14 gauge steel doors and 16 gauge steel bodies with stainless steel hinges. Two keys included. Mail gets pushed through slot. Slot bent inward to restrict a hand from reaching in to easily steal your mail.


These 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.

Small Size -
Measures approx 5.75" wide x 4.75" high x 18" deep
Slot size: 5.75" wide x 1.25" high
Mailbox opening must be at least 5.75" wide (L-R)


Key Blanks:

A locksmith can make duplicate keys using our key blank. When we say locksmith, we don't mean Home Depot. We mean a professional locksmith.


Double Check the width of your current mailbox!
Double Check the depth of your current mailbox!

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.

Below we picture the small locking mailbox insert. It is the only one we sell that has a side flag cut-out. It has been our experience that only the small unit needs the cut-out.

Play the VIDEO at the bottom of the page.