Master Lock

137 West Forest Hill Ave.
Oak Creek, WI 53154

About Master Lock

Master Lock offers a complete line of Safety Lockout/Tagout products, to complement our full range of safety padlocks.
This exclusive line of LO/TO accessories includes innovative and patent-pending cable lockout, gate valve, ball valve, circuit breaker, plug covers and much more. Available individually or in modular lockout kits and stations, these LO/TO products are easy-to-use and effective in use.

The Master Lock Safety Series™ products and services are designed to help you successfully develop and implement the best possible lockout/tagout system for your facility. The goal is for your facility to meet or surpass OSHA's LO/TO requirements. While it's important to satisfy regulations, preventing accidents and protecting your employees is critical. You can rely on the Safety Series™ lockout and tagout products to perform to the high standards you expect from Master Lock.

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Products by Master Lock

By Master Lock

Easy to use lockouts for circuit breakers. Read more »