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.
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Master Lock M4321 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4321 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4318 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4318 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4320 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4320 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4319 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4319 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4315 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4315 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4316 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4316 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4314 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4314 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4312 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4312 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4304 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4304 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4313 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4313 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4311 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4311 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4310 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4310 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4309 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4309 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4308 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4308 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4307 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4307 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4305 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4305 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4306 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4306 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4297 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4297 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4302 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4302 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4301 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4301 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4300 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4300 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4299 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4299 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4298 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4298 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4296 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4296 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4295 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4295 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4294 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4294 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4293 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4293 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4292 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4292 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4291 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4291 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4290 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4290 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4289 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4289 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4288 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4288 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4286 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4286 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4285 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4285 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4287 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4287 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4284 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4284 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4283 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4283 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4280 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4280 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4281 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4281 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4282 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4282 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4279 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4279 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4278 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4278 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4273 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4273 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4277 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4277 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4267 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4267 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4272 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4272 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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$8.87
Master Lock M4275 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4275 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 M4276 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4276 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