Designed to defend against it all, the Master Lock Elite Heavy Duty Lock is our toughest lock yet. The anti-rotation, boron shackle combines innovative CutGuard™ technology with a dual ball-bearing locking mechanism for advanced protection against bolt cutters, hammers and pry attacks. An upgraded 5-pin cylinder fully equips this high security padlock to defy picking attempts. Premium materials including hardened steel, corrosion-resistant aluminum and high-quality nickel plating outperform in severe weather. This is an ideal outdoor gate lock, fence lock, storage unit lock or lock for any application exposed to the elements. For enhanced usability, an improved keyway design limits wear while optimizing efficiency, and our Keyed Alike system means you can access a system of multiple Master Lock Elite™ Heavy Duty Locks with just one key. Plus, every Master Lock Elite padlock is backed by our Lifetime Guarantee, so you can be confident that you’re choosing a premium product and protecting what’s important to you the right way.
Product Details
- Outdoor Storage & Fences
- Self-Storage Units & Lockers
- Tools, Job Boxes & Gang Boxes

YOUR REPUTATION IS OUR REPUTATION.
LEGACY
As the authority in locks and safes for over a century, why would you choose anything else?
RESILIENCE
We build and test our products to meet the highest standards for strength and durability — because you won’t stand for anything less.
INNOVATION
We don’t innovate for the sake of innovation. Every enhancement ensures our products are more secure, easier to use and simply better than the rest.


