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 M4029 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4029 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4028 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4028 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4027 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4027 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4026 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4026 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4024 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4024 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4023 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4023 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4021 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4021 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4022 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4022 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4020 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4020 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4019 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4019 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4018 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4018 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4017 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4017 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4013 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4013 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4016 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4016 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4015 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4015 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4014 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4014 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4012 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4012 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4011 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4011 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4010 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4010 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4008 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4008 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4009 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4009 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4006 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4006 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4007 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4007 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4005 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4005 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4004 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4004 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4001 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4001 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4002 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4002 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4003 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4003 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M4000 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4000 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3999 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3999 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3997 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3997 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3998 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3998 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3994 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3994 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3995 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3995 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3996 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3996 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3993 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3993 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3992 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3992 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3988 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3988 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3991 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3991 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3990 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3990 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3989 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3989 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3986 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3986 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3987 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3987 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3985 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3985 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3984 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3984 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3982 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3982 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3983 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3983 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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 M3981 Padlock Replacement Key
Master LockPadlock Replacement Key with code M3981 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
Original price
$8.87
-
Original price
$8.87
Original price
$8.87
$8.87
-
$8.87
Current price
$8.87