Master Lock
Master Lock has been making padlocks and security hardware since 1921. Nearly every keyed lock it sells carries a code, and a replacement key can be cut from that code alone. Everything we stock for those locks is here.
The code is stamped on the lock itself, usually on the back of a padlock body or the face of a cabinet lock. Padlock keys cover the laminated, brass and disc padlock lines. Office furniture keys cover desks, files and cubicle storage. Key blanks suit locksmiths cutting their own. Everything else is cut from our general Master Lock keys.
Can't find what you need? Contact us by phone, email or live chat. Our US-based customer service team is here to help.
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z469 Replacement Key
Master LockReplacement Key with code 12Z469 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z465 Replacement Key
Master LockReplacement Key with code 12Z465 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z466 Replacement Key
Master LockReplacement Key with code 12Z466 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z454 Replacement Key
Master LockReplacement Key with code 12Z454 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z451 Replacement Key
Master LockReplacement Key with code 12Z451 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z462 Replacement Key
Master LockReplacement Key with code 12Z462 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z461 Replacement Key
Master LockReplacement Key with code 12Z461 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z457 Replacement Key
Master LockReplacement Key with code 12Z457 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z463 Replacement Key
Master LockReplacement Key with code 12Z463 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z456 Replacement Key
Master LockReplacement Key with code 12Z456 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z458 Replacement Key
Master LockReplacement Key with code 12Z458 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z460 Replacement Key
Master LockReplacement Key with code 12Z460 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z459 Replacement Key
Master LockReplacement Key with code 12Z459 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z455 Replacement Key
Master LockReplacement Key with code 12Z455 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z453 Replacement Key
Master LockReplacement Key with code 12Z453 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z450 Replacement Key
Master LockReplacement Key with code 12Z450 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z449 Replacement Key
Master LockReplacement Key with code 12Z449 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z447 Replacement Key
Master LockReplacement Key with code 12Z447 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z448 Replacement Key
Master LockReplacement Key with code 12Z448 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z446 Replacement Key
Master LockReplacement Key with code 12Z446 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z452 Replacement Key
Master LockReplacement Key with code 12Z452 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z445 Replacement Key
Master LockReplacement Key with code 12Z445 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z444 Replacement Key
Master LockReplacement Key with code 12Z444 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z441 Replacement Key
Master LockReplacement Key with code 12Z441 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z443 Replacement Key
Master LockReplacement Key with code 12Z443 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z442 Replacement Key
Master LockReplacement Key with code 12Z442 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z439 Replacement Key
Master LockReplacement Key with code 12Z439 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z440 Replacement Key
Master LockReplacement Key with code 12Z440 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z438 Replacement Key
Master LockReplacement Key with code 12Z438 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z435 Replacement Key
Master LockReplacement Key with code 12Z435 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z437 Replacement Key
Master LockReplacement Key with code 12Z437 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z436 Replacement Key
Master LockReplacement Key with code 12Z436 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z434 Replacement Key
Master LockReplacement Key with code 12Z434 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z433 Replacement Key
Master LockReplacement Key with code 12Z433 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z432 Replacement Key
Master LockReplacement Key with code 12Z432 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z430 Replacement Key
Master LockReplacement Key with code 12Z430 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z431 Replacement Key
Master LockReplacement Key with code 12Z431 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z429 Replacement Key
Master LockReplacement Key with code 12Z429 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z428 Replacement Key
Master LockReplacement Key with code 12Z428 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z426 Replacement Key
Master LockReplacement Key with code 12Z426 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z424 Replacement Key
Master LockReplacement Key with code 12Z424 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z427 Replacement Key
Master LockReplacement Key with code 12Z427 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z425 Replacement Key
Master LockReplacement Key with code 12Z425 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z422 Replacement Key
Master LockReplacement Key with code 12Z422 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z423 Replacement Key
Master LockReplacement Key with code 12Z423 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z421 Replacement Key
Master LockReplacement Key with code 12Z421 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z419 Replacement Key
Master LockReplacement Key with code 12Z419 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87
Master Lock 12Z420 Replacement Key
Master LockReplacement Key with code 12Z420 for Master Lock Key Series 12Z000 - 12Z999. Compatible with Manufacturers: Master Lock! Compatible with Manufactu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87