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 M4174 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4174 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4172 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4172 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4173 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4173 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4170 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4170 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4168 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4168 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4169 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4169 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4171 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4171 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4166 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4166 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4167 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4167 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4165 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4165 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4161 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4161 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4162 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4162 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4160 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4160 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4163 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4163 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4164 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4164 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4159 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4159 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4158 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4158 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4156 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4156 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4157 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4157 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4155 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4155 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4154 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4154 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4153 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4153 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4151 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4151 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4152 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4152 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4150 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4150 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4149 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4149 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4148 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4148 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4144 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4144 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4147 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4147 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4146 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4146 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4145 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4145 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4143 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4143 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4141 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4141 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4142 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4142 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4140 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4140 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4139 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4139 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4137 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4137 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4138 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4138 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4134 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4134 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4136 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4136 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4133 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4133 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4135 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4135 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4131 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4131 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4132 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4132 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
View full details
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Master Lock M4130 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4130 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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Master Lock M4128 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4128 for Master Lock Key Series M2001 - M5000. Compatible with Manufacturers: Master Lock! Compatible with Manu...
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$8.87
Master Lock M4129 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4129 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 M4126 Padlock Replacement Key
Master LockPadlock Replacement Key with code M4126 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