Master Lock

Protect your property, wherever you are

Master Lock No. 5400D Portable Lock Box

The Master Lock No. 5400D Portable Lock Box features a 3-1/4in (83mm) wide metal body for durability. The portable design offers removable “over the knob” installation. Set your own 4-digit combination for keyless convenience and increased security. The shutter door protects combination dials from weather, dirt and grime; and molded body and vinyl coated shackle prevent scratching. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

  • 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

Master Lock No. 5401D Wall Mount Lock Box

The Master Lock No. 5401D Wall Mount Lock Box features a 3-1/4in (83mm) wide metal body for durability. The wall mount design offers permanent installation. Set your own 4-digit combination for keyless convenience and increased security. The shutter door protects combination dials from weather, dirt and grime; and molded body and vinyl coated shackle prevent scratching. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

  • Wall mount design for permanent installation
  • Large internal cavity prevents jamming, even when holding multiple key
  • Set your own combination convenience for optimal security
  • Protective weather cover prevents freezing and jamming
  • Molded body and vinyl coated shackle prevent scratching
  • Internal Dimensions: 3-1/4in (83mm) H x 2-1/4in (57mm) W x 1in (25mm) D

“Limited lifetime warranty”?? Actually, no.

“Limited lifetime warranty”??? Not for me. I was told that the product is now no longer supported so am left with a holding bracket now obsoleted because of a small, broken plastic clip. They wouldn’t even share the CAD with me so I could 3D print one myself. “...peace of mind from a brand you can trust”??? I don’t think so. If this is the support I can expect for a cheap plastic clip, how much help would I get if my bike was stolen, as per the “Anti-theft guarantee” I wonder!?! I’ll look elsewhere in future, thank you very much.