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Master Lock 5400D Portable Key Storage Lock Box with 4-Digit Combination

Manufacturer

Master Lock

<h3>A Century of Security Innovation</h3><p>Since 1921, Master Lock has been synonymous with strength, durability, and uncompromising security. Founded by locksmith-inventor Harry Soref, the company revolutionized the industry with a padlock design that used laminated steel layers to economically produce an exceptionally strong lock body. Now a subsidiary of Fortune Brands Innovations, Master Lock Company LLC is headquartered in Oak Creek, Wisconsin, where it continues to develop security solutions trusted by millions around the world.</p><p>The brand gained widespread recognition through its famous 1974 Super Bowl commercial showing a blast from a high-powered rifle aimed at a padlock—though the bullet pierced the lock, it still functioned, cementing the "Tough Under Fire" slogan in the American consciousness. That commitment to legendary strength remains the foundation of every Master Lock product today.</p><h3>Comprehensive Security Solutions</h3><p>Master Lock's extensive product lineup serves diverse security needs across personal, automotive, commercial, and industrial applications. At the core of the brand's reputation are its <a href="/436-master-lock-locks-200628">locks</a>, which range from classic laminated padlocks and combination locks to cutting-edge Bluetooth-enabled and biometric models. The company added the combination lock to its portfolio in 1935, a model still sold today, and launched Bluetooth-enabled padlocks in 2015, demonstrating Master Lock's ability to honor tradition while embracing innovation.</p><p>Beyond traditional security, Master Lock has expanded into automotive and cargo control solutions. Their <a href="/436-master-lock-tie-strap-and-clip-10142">tie straps and clips</a> help secure loads in truck beds, trailers, and roof racks, featuring innovations like the StrapTrap system that manages excess webbing. For vehicle security, Master Lock offers specialized products including <a href="/436-master-lock-spare-tire-hoist-20541">spare tire hoists</a> and spare tire locks for automobiles, protecting vulnerable external-mounted tires from theft.</p><h3>Built to Last</h3><p>What sets Master Lock apart is not just product innovation but enduring quality. Customer testimonials speak of locks protecting spare tires during 8,300-mile trips to Alaska and combination locks working flawlessly after 64+ years of service with exposure to the elements. This extraordinary longevity stems from Master Lock's commitment to rigorous testing and premium materials, whether it's high-security shackles on padlocks or UV-treated polyester webbing on cargo straps.</p><p>Whether you're securing a storage unit, protecting tools at a job site, locking down cargo, or safeguarding your vehicle's spare tire, Master Lock delivers the authentic, time-tested security that has made it a household name for over a century. When protection matters, professionals and homeowners alike turn to the brand that literally proved it's tough under fire.</p>

Part Number

5400D
06/03/2036 7:31 AM
Sale Price

$36.69

1 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Master Lock 5400D is a portable combination key storage lock box designed to securely store spare keys, access cards, and small valuables. This compact lock box features a durable molded body construction with a vinyl-coated shackle that resists scratching and provides weather protection.

Key Features:

  • 4-digit resettable combination lock for customizable security
  • 13/32 inch diameter hardened steel shackle for cut resistance
  • Compact 3-1/4 inch body width fits discreetly in most locations
  • Shackle clearance of 1-13/32 inch height x 1-7/8 inch width accommodates railings, fences, and door handles
  • Weather-resistant construction protects contents from the elements
  • Vinyl-coated shackle prevents surface damage during installation
  • Built-in key storage compartment with secure closure

Ideal for contractors, property managers, real estate agents, and homeowners who need to provide secure key access. The portable design allows you to mount the lock box wherever convenient, while the resettable combination eliminates the need for physical keys.

Always great product line and fast delivery.

Great customer service, very helpful.

Excellent

Great experience

Fast service, product came in good condition

Was able to pick out what I needed, save the list, and when I was ready to order a couple of simple clicks to finish the transaction.

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