Restore security instantly and economically!

Interchangeable core padlocks and door locks don't require disassembly in order to change the cylinder. The figure-8 interchangeable core can be removed and replaced with a single control key.

This convenience addresses common security issues:

• Preventing access when a key has been lost or stolen
• Resetting individual doors or gates with different locks to selectively limit access to authorized personnel
• Re-securing a building after temporary or contract employees end their term
• Securing a building against terminated employees

Click on the following links to download sections of the Master Lock Technical Manual:

ProSeries™ Interchangeable Core Service Procedure (pdf, 288KB)
ProSeries™ Interchangeable Core Component Parts (pdf, 30KB)