MasterLock Padlocks
Lost Combination and/or Lost Key

  1. I've forgotten the combination to my standard dial combination lock. How do I obtain the combination that I use for personal use?
    Due to increased security concerns nationwide, Master Lock recognizes the heightened need for additional safety measures. We no longer provide lock combinations in response to phone, fax, or email requests. Please follow the procedure outlined below to obtain the combination to your lock and submit your request to:

    Master Lock Warehouse
    1600 W. La Quinta Rd
    Suite/WHSE # 2B
    Nogales, AZ 85621

    • Print out the Lost Combination Form, or download the PDF file.
    • Have your Lost Combination Form notarized by a Notary Public to prove that you are the owner of the lock (you can include up to 6 combinations on one notarized form).

      • Note: Inmates at a correctional facility - in addition to the lost combination form, you must submit your request on official prison letterhead. In lieu of notarization, the form must be signed by a prison official.

• Photocopy the serial number on the back case of your combination lock. This copy MUST clearly show that the lock is not attached to anything. Be sure to hand write the serial number on the photocopy.
• Mail the original completed, notarized Lost Combination Form and the photocopy of the back of your lock to the address above.

* It will take approximately 4 to 6 weeks to process your request for a combination.
Note: If the form is not fully completed and notarized with a raised seal or rubber stamped seal, or if the serial number is not legible on the photocopy, your request will not be honored. Master Lock does not reimburse for any Notary fees.

(Try MasterLock's new combination registration site at, a free service from Master Lock!)

  1. Someone was playing around with my resettable combination lock and accidentally reset the combination. Now, I do not know the correct combination. Is there any way to reset this lock back to "0" and assign a new combo?
    Unfortunately, this lock is not resettable without knowing the combination that was assigned by the owner. It's most likely that you will need to purchase a new lock.

    *Once the lock is set, there is no way to open it without the combination. Please make sure you record your NEW combination in a safe place. (Try our new combination registration site at, a free service from Master Lock!)

  2. I lost the keys for my padlock. Is it possible to obtain new keys for my lock?
    It is possible to obtain replacement keys for your padlock ONLY if you know the key number. The key number is stamped on the original keys provided with your lock. If you do not know the key number, it is possible to obtain additional keys from a locksmith who can impression your lock. If you do know the key number, go to a locksmith or local hardware store to order keys. Please note that the locksmith will charge you a fee for this service. Not all Locksmiths/Hardware Stores offer this service; please phone ahead.

  3. I have a combination lock that has a keyway in the front or the back. Is it possible to get a key for my lock?
    These locks are registered to a particular business or school and the keys are reserved for their use only.

    Yes, it is possible to purchase up to 12 additional keys if you are the registered end user (i.e. a school or institution). Send us a fax on your official letterhead requesting the keys you need. Be sure to include the exact key numbers and any information that will help us find your user registration. The cost is $3.99 per key plus a $5.00 flat fee for shipping, regardless of the number of keys being ordered. Fax your request to 1-800-308-9245, to the attention of Customer Service/Registered Keys.

    A remittance request will accompany your keys. Payment can be made by check or money order (at this time, credit card payments are not accepted).

  4. I would like to purchase additional keys for my lock. Can I order them directly from Master Lock?
    Master Lock does not provide keys directly to consumers; however, you may take one of your keys to a local hardware store, home center or locksmith where they can cut duplicate keys. Please note that not every store will have the appropriate keyblanks available. Please call ahead.

  5. How can I get a new key for my lock if the locksmith/hardware store could not find a replacement?
    It is not always possible to get a replacement key for every model of lock. If your hardware store cannot get one for you, please check with a local locksmith. If they are also unable to get a replacement, you may have to purchase a new lock.

  6. The hardware store no longer provides key replacement service. What should I do now?
    Occasionally, a store will stop offering this service due to lack of demand or time constraints. In this case, we suggest calling a locksmith who is used to handling this type of request. To save time, always call ahead to ensure that your particular store provides these types of services.

  7. I have lost the keys that came with my lock and I do not know my key number. Can I send my lock to Master Lock to have keys made?
    Without the key number, there is no way for Master Lock to know which key will open your lock. There is no such thing as a "Master" key that will open all Master Lock products.

  8. We lost both keys to our lock during a move. Now we are unable to get some important records out of storage. What should we do?
    If you did not record the key number, which was stamped on the original keys that came with your lock, it is not possible to obtain replacement keys. Contact your local hardware store/locksmith for removal. If you know the key number, a hardware store/locksmith can duplicate most keys.

  9. I purchased a combination lock from school that has a keyway in the back. Can I obtain a key for it?
    No, this type of combination lock is registered to a particular end user. Due to security constraints, only that end user is authorized to obtain additional keys.

  10. Is it possible to order a new lock that my existing key will work with?
    It may be possible if you originally ordered a keyed-alike or master-keyed product and are purchasing the same lock model. When purchasing, choose the keyed-alike or master-keyed option and enter your key code in the ‘previous key number to match’ field. We will verify the key code and contact you if it is invalid

  11. Can Master Lock keep a record of my combination and/or key numbers for me?
    Master Lock provides a new and exciting online tool called Master Lock Vault that allows you to store up to five combinations and/or key numbers in a secure database. You can access your combos 24 hours a day, seven days a week.