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 M4416 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4416 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4415 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4415 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4412 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4412 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4413 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4413 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4414 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4414 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4411 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4411 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4410 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4410 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4406 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4406 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4409 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4409 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4408 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4408 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4407 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4407 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4405 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4405 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4404 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4404 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4403 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4403 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4402 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4402 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4400 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4400 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4401 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4401 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4398 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4398 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4396 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4396 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4397 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4397 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4399 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4399 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4393 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4393 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4394 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4394 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4395 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4395 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4392 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4392 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4390 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4390 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4391 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4391 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4389 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4389 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4388 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4388 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4386 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4386 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4387 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4387 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4385 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4385 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4384 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4384 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4383 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4383 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4382 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4382 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4381 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4381 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4380 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4380 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4379 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4379 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4377 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4377 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4378 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4378 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4376 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4376 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4375 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4375 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4367 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4367 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4374 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4374 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4373 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4373 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4372 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4372 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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$8.87
Master Lock M4371 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4371 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 M4370 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4370 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