The Level 4 lock upgrade is the ultimate in security. No other mailbox on the market offers this level of protection!  

The Level 4 Lock includes our patented 5-point locking mechanism, the Claw Lock, but is also partnered with a high security Medeco deadbolt. The mechanism is made entirely of 10 gauge stainless steel and is partnered with a door made of TWO 14 gauge steel plates pressed together. This lock includes 2 keys, duplicates are available.

The Level 4 Lock can be added to any Letter Locker® mailbox (excluding Rural boxes). This lock must be purchased with the mailbox so proper installation can be made during fabrication.

See how it works on the next tab.

When the key is turned, the Medeco stainless steel cam (latch) pushes up on a lift plate rotating FOUR stainless steel "CLAWS" into the door bracket receiver. The "Claw" Locking Mechanism adds four additional points of security to the lock! No other mailbox on the market has this capability or level of security.