You may also like
OVERVIEW
- Over the door knob design for portable installation
- Large internal cavity prevents jamming, even when holding multiple keys
- Set your own combination convenience for optimal security
- Set your own 4-digit combination for keyless convenience and increased security
- Protective weather cover prevents freezing and jamming
- Molded body and vinyl coated shackle prevent scratching
- Also available with personalized laser engraving - Learn more
- Internal Dimensions: 3-1/2in (89mm) H x 2-3/4in (70mm) W x 1in (25mm) D
Manufacturer Resources
Product Specs
- Subcategory:
- Padlocks
- Series:
- 5400 Series
- Keyed:
- Yes
- Product Group:
- Other \/ Miscellaneous Hardware
- Product Subgroup:
- Padlocks
- Product Type:
- Padlocks
- Commercial/Residential:
- Residential
- Shackle Diameter:
- 13/32" (10mm)
- Shackle Width:
- 1-7/8" (48mm)
- Padlock Body Width:
- 3-3/4" (83mm)
- Product Shackle Length:
- 1-13/32"
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Master Lock 5400D – Frequently Asked Questions
1) Will the Master Lock 5400D lock box fit over a standard door knob, or does it need a hasp or railing?
The 5400D is an over-the-door-knob box. The shackle opening is 1-7/8 inches wide with a 1-13/32 inch shackle length and a 13/32 inch (10mm) diameter shackle, so it hangs on a knob or lever that the shackle can clear inside that opening. It is portable, not fixed-mount, so there is no drilling and nothing to install on the door. A thick commercial lever return or a wide pull will not pass through 1-7/8 inches, and for those openings you want a wall-mounted key box instead.
2) Can I set my own code on the Master Lock 5400D, or does it come with a factory combination?
You set your own 4-digit combination on the 5400D. That means no factory code to look up and no keys to hand out, and you can reset the code between tenants, trades, or showings. For a landlord running several units, each box can carry a different code without ordering anything different.
3) Is the Master Lock 5400D key box strong enough for a commercial jobsite or a bank of apartment doors?
Master Lock classes the 5400D as residential. It is a portable, hang-on-the-knob box sized for single-property use: real estate showings, a contractor letting a sub in for a day, a landlord doing a unit turn. It is not a hardened, permanently mounted key cabinet, and it is not what you would specify to control keys across a whole facility. If you need fixed key control on a commercial building, look at a wall-mount key safe rather than a portable box.
4) How many keys will the Master Lock 5400D key box actually hold?
Internal cavity measures 3-1/2 inches (89mm) by 2-3/4 inches (70mm) by 1 inch (25mm), which is a full key-ring depth rather than a single-key slot. Master Lock builds the cavity large specifically so a bunch of keys does not jam the mechanism when the box is opened. For a property manager staging one unit for a showing or a turn, that is a unit key, a mailbox key and a common-area key on one ring with room left.
5) Is the Master Lock 5400D lock box rated for outdoor use in winter?
There is a protective weather cover over the dial on the 5400D, which Master Lock includes to keep the mechanism from freezing and jamming. Combined with the molded body and vinyl coated shackle, it is built to hang on an exterior knob through the season. The vinyl coating on the shackle is also what keeps it from chewing up the finish on the door or the knob it is hanging from.
6) How big is the Master Lock 5400D lock box hanging on the door?
Body width on the 5400D is 3-3/4 inches (83mm), with a 13/32 inch (10mm) shackle. That is the footprint sitting against the door face, so on a narrow-stile glass front door or a door with a close-fitting storm door, check the clearance before you hang it. Internal cavity is 3-1/2 x 2-3/4 x 1 inches.
7) Can I get Master Lock 5400D lock boxes engraved for a property management fleet?
Personalized laser engraving is offered by Master Lock on the 5400D, which is how firms running dozens of boxes tag them with a company name or an asset number so they come back. It is arranged through Master Lock's business engraving program, not a variant you pick on the order.
How fast can I get the Master Lock 5400D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Master Lock 5400D come with a warranty?
Absolutely. The Master Lock 5400D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Master Lock 5400D?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Master Lock 5400D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.
