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 12Z944 Replacement Key
Master LockReplacement Key with code 12Z944 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 12Z946 Replacement Key
Master LockReplacement Key with code 12Z946 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 12Z945 Replacement Key
Master LockReplacement Key with code 12Z945 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 12Z943 Replacement Key
Master LockReplacement Key with code 12Z943 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 12Z942 Replacement Key
Master LockReplacement Key with code 12Z942 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 12Z941 Replacement Key
Master LockReplacement Key with code 12Z941 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 12Z931 Replacement Key
Master LockReplacement Key with code 12Z931 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 12Z933 Replacement Key
Master LockReplacement Key with code 12Z933 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 12Z932 Replacement Key
Master LockReplacement Key with code 12Z932 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 12Z938 Replacement Key
Master LockReplacement Key with code 12Z938 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 12Z939 Replacement Key
Master LockReplacement Key with code 12Z939 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 12Z940 Replacement Key
Master LockReplacement Key with code 12Z940 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 12Z937 Replacement Key
Master LockReplacement Key with code 12Z937 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 12Z936 Replacement Key
Master LockReplacement Key with code 12Z936 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 12Z934 Replacement Key
Master LockReplacement Key with code 12Z934 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 12Z935 Replacement Key
Master LockReplacement Key with code 12Z935 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 12Z927 Replacement Key
Master LockReplacement Key with code 12Z927 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 12Z929 Replacement Key
Master LockReplacement Key with code 12Z929 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 12Z928 Replacement Key
Master LockReplacement Key with code 12Z928 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 12Z930 Replacement Key
Master LockReplacement Key with code 12Z930 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 12Z926 Replacement Key
Master LockReplacement Key with code 12Z926 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 12Z921 Replacement Key
Master LockReplacement Key with code 12Z921 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 12Z924 Replacement Key
Master LockReplacement Key with code 12Z924 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 12Z925 Replacement Key
Master LockReplacement Key with code 12Z925 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 12Z920 Replacement Key
Master LockReplacement Key with code 12Z920 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 12Z923 Replacement Key
Master LockReplacement Key with code 12Z923 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 12Z922 Replacement Key
Master LockReplacement Key with code 12Z922 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 12Z919 Replacement Key
Master LockReplacement Key with code 12Z919 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 12Z918 Replacement Key
Master LockReplacement Key with code 12Z918 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 12Z913 Replacement Key
Master LockReplacement Key with code 12Z913 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 12Z914 Replacement Key
Master LockReplacement Key with code 12Z914 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 12Z915 Replacement Key
Master LockReplacement Key with code 12Z915 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 12Z916 Replacement Key
Master LockReplacement Key with code 12Z916 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 12Z912 Replacement Key
Master LockReplacement Key with code 12Z912 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 12Z910 Replacement Key
Master LockReplacement Key with code 12Z910 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 12Z917 Replacement Key
Master LockReplacement Key with code 12Z917 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 12Z911 Replacement Key
Master LockReplacement Key with code 12Z911 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 12Z909 Replacement Key
Master LockReplacement Key with code 12Z909 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 12Z908 Replacement Key
Master LockReplacement Key with code 12Z908 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 12Z902 Replacement Key
Master LockReplacement Key with code 12Z902 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 12Z903 Replacement Key
Master LockReplacement Key with code 12Z903 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 12Z905 Replacement Key
Master LockReplacement Key with code 12Z905 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 12Z906 Replacement Key
Master LockReplacement Key with code 12Z906 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 12Z907 Replacement Key
Master LockReplacement Key with code 12Z907 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 12Z901 Replacement Key
Master LockReplacement Key with code 12Z901 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 12Z900 Replacement Key
Master LockReplacement Key with code 12Z900 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 12Z904 Replacement Key
Master LockReplacement Key with code 12Z904 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 12Z898 Replacement Key
Master LockReplacement Key with code 12Z898 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