Replacement Mailbox Locks and Keys

Mail security is a big deal, but it all starts with the lock. It keeps your mail in while keeping unwanted people, objects, and debris out of your commercial or residential mailbox. As such a valuable asset, it makes sense that any problem with a mailbox lock, from vandalism to a simple missing key, needs a quick solution. Without one, a lock problem can jeopardize mail security and cause a host of inconveniences. Whether a damaged lock is malfunctioning or a key has been misplaced, replacement locks are the smart choice. Learn More

For more product info contact the National Mailboxes Customer Support Center at 1-800-676-5161

Showing 1–21 of 32 results

Showing 1–21 of 32 results

Product Line Features:

  • Locks from National Mailboxes are inexpensive, easy to install and tough while they restore the convenience and security you and your tenants have come to expect.
  • When ordering replacement locks, make sure you are able to reference a manufacturer’s serial number or model number from your existing locks. This will ensure that you order the correct locks.
  • Keyed-in Cylinders: Special cylinders keyed into building key systems. Cylinder numbers listed include special adaptations made by lock manufacturers. Locks can be installed by National Mailboxes or by the customer
  • Standard Cam Type: 5-pin tumbler cylinder supplied with 2 keys and 1,000 key changes. Additional keys available upon request.
  • Combination Type Lock: 3-digit, single-dial type with spring latch and automatic throw off.
  • Contact factory for lock numbers not listed. Please consult factory for National Mailboxes hardware components.