How to determine built-in lock model number
It's easy - use any of these options!
Check your records
Your records should contain lock model number information
![Check Records](https://cdn.masterlock.com/cms/image/student-training-videos/check-records.jpg)
Contact your distributor
Call your lock seller/distributor where you purchased your locks from
![Contact distributor](https://cdn.masterlock.com/cms/image/student-training-videos/contact-distributor.jpg)
Check back of built-in lock
Open locker and locate the 2-digit number on the button located on the back side of the lock.
![Check back of lock](https://cdn.masterlock.com/cms/image/student-training-videos/back-of-lock.jpg)
Check Latch Movement
![Check Latch Movement](https://cdn.masterlock.com/cms/image/student-training-videos/latch-movement.jpg)
For additional assistance, contact us.