Replacement Mailbox Locks and Keys

Wholesale Prices

Protect your mail with high-quality mailbox locks and universal replacement keys from National Mailboxes. Whether you need a new lock for a mailbox in an apartment building, a USPS-approved replacement for a commercial mailbox, or a secure lock for a private setup, our wide range of options has you covered.

Our mailbox lock replacements are durable, easy to install, and provide peace of mind that your mail is safe and secure. Upgrading or replacing your lock is a simple way to maintain privacy and prevent unauthorized access. Explore our selection below to find the right lock for your mailbox needs. Learn More

For more product info contact the National Mailboxes Customer Support Center at 1-888-448-7181

Showing 1–27 of 45 results

Showing 1–27 of 45 results

Wholesale Prices

Mail security is a priority for both residential and commercial mailboxes, and it all starts with the lock. It keeps your mail safe from unwanted hands, objects, and debris. If a mailbox lock is damaged due to vandalism or you’re dealing with a misplaced key, a quick solution is essential. Without a secure lock, mail security can be compromised, leading to inconvenient access issues. Replacement locks are a smart choice, ensuring consistent security and peace of mind.

Product Line Features

Locks from National Mailboxes are designed for reliability, affordability, and ease of installation, restoring the convenience and security you and your tenants expect. Before ordering replacement locks, be sure to reference the manufacturer’s serial or model number on your existing locks to ensure compatibility.

  • Keyed-in Cylinders: Special cylinders adaptable to building key systems, with manufacturer-specific adaptations. Locks can be installed by National Mailboxes or the customer.
  • Standard Cam Type: Includes a 5-pin tumbler cylinder, 2 keys, and 1,000 unique key changes. Additional keys available upon request.
  • Combination Lock Type: Features a 3-digit single-dial with a spring latch and automatic throw-off.
  • For additional lock numbers or specifications, please consult with National Mailboxes hardware specialists.

Why Choose National Mailboxes for Replacement Locks and Keys?

  • Built to Last: Manufactured with durable materials designed to withstand wear, weather, and secure your mail.
  • Easy to Install: DIY-friendly design and clear instructions make these locks simple to install.
  • High Security: High-quality construction ensures privacy and security, ideal for apartment complexes, office buildings, or private mailboxes.

FAQ

  • Are these locks compatible with USPS mailboxes?
    Yes, many of our locks are USPS-approved and work with both residential and commercial mailboxes.
  • How do I install a replacement lock?
    Each lock comes with instructions. For a basic guide, you can also check our installation guide here.

Ready to upgrade or replace your mailbox lock? Browse our selection above or contact us at 1-888-448-7181 for assistance.