School Locker Locks

My school has combination locks throughout our facility. We've lost the chart booklet that lists the serial numbers and combinations. How can we get a new chart booklet?

To get a new combination chart booklet, please fill out the Chart Request Form.

My school needs to purchase locker locks. How can I get a quote from Master Lock?

To get a quote, you'll need to reach out to a distributor. Please see our list of distributors, or reach out to customer service for more information.

I have a Master Lock combination lock that has a keyway in the front or back. Can I 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. It is possible to purchase up to 12 additional keys if you are a registered end user of the school or institution.

Email your request on official letterhead to to the attention of Customer Service/Registered Keys.

Be sure to include the exact key numbers and any information that will help us find your user registration. The cost is $9.07 per key plus a $5.00 flat fee for shipping, regardless of the number of keys being ordered.

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).

How do we change the combinations on our Master Lock built-in locker locks?

Please see our instruction guide for step-by-step instructions. If you have more questions, please watch this instructional video or contact our Customer Care Team.

Our school bought built-in locker locks for our facility. How do we install them?

Please see our installation guides for step-by-step instructions.

1600 Series Installation Instructions

1700 Series Installation Instructions

Please contact our Customer Care Team if you have more questions.

How do I open a Master Lock combination lock? What is the dialing sequence?

To open a standard Master Lock combination lock (1500D):

  1. Turn the dial 3 times to the right and stop on the first number of the sequence.
  2. Turn the dial to the left, past the first number of the sequence, and stop on the second number.
  3. Turn the dial to the right and stop on the third number of the sequence.
  4. Pull up on the shackle.

Watch the instructional video.

My school has some combination locker locks that are no longer working. Will Master Lock replace these locks?

We offer a limited lifetime warranty on combination locker locks. If the product fails because of material defect or workmanship, we will replace it free of charge.

To start the warranty process, please contact Customer Care.

Contact us
US: 1-800-464-2088 
Canada: 1-800-227-9599

You will need to provide: 

  1. Lock model number. 
  2. Lock serial number. 
  3. Complete name and address of the facility.
  4. Lock key number (if applicable). 
  5. What the lock is used for and how it failed.


This warranty gives you specific legal rights and you may have other rights. These rights may vary from state to state, province to province, or country to country.

Master Lock is not liable for incidental or consequential damages. This warranty does not cover products which have been abused, altered, damaged, misused, cut, or worn. Products over 10 years old are subject to evaluation prior to warranty coverage.

To the extent permitted by law, MASTER LOCK COMPANY disclaims all other implied or express warranties including warranties of merchantability and/or fitness for a particular use. Some governments do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

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