Master Lock

Adjustable Ball Valve Lockout (1/2" to 2" valves) Includes removable insert to accommodate a wide range of handle designs and dimensions


Product Details: MLS3921-Butterfly Valve Lockout kit, Device w/ 3-foot Cable Lockout. MLS3920-Butterfly Valve Lockout, Device Only. Fits vitually all Butterfly Valves. Constructed from tough, lightweight thermoplastic; withstands temp and extreme environments.


Product Details: MLS3921-Butterfly Valve Lockout kit, Device w/ 3-foot Cable Lockout. MLS3920-Butterfly Valve Lockout, Device Only. Fits vitually all Butterfly Valves. Constructed from tough, lightweight thermoplastic; withstands temp and extreme environments.


The Master Lock No. 468L Seal Tight™ Handle-Off Ball Valve Lockout Device features a universal fit to effectively lock out all valves from 3/8in (10mm) to 4in (102mm). The patented innovative design eliminates the risk of valve reactivation with removal of the handle and works in virtually all valve installations, including insulated pipes. Constructed of durable PVC polyester fabric and HDPE plastic, the lightweight, flexible material makes device easy to carry and compact storage in safety...


Prevent Unintentional Energization of Electric Circuits. Versatile covers lock out most circuit breakers. No. 491 oversized breaker device fits toggle switches to 2-1/2" wide x 7/8" thick. No. 492 for single pole circuit switches having recessed side-holes. No. 493 with convenient thumbwheel, for 277 and 120 volt switches. No. 494 with convenient thumbwheel, for 480/600 volt switches. No. 495 universal multi-pole devices for breakers with tie-bar. Position cover over switch (in "...


Prevent Unintentional Energization of Electric Circuits. Versatile covers lock out most circuit breakers. No. 491 oversized breaker device fits toggle switches to 2-1/2" wide x 7/8" thick. No. 492 for single pole circuit switches having recessed side-holes. No. 493 with convenient thumbwheel, for 277 and 120 volt switches. No. 494 with convenient thumbwheel, for 480/600 volt switches. No. 495 universal multi-pole devices for breakers with tie-bar. Position cover over switch (in "...


Compact design locks out smaller plugs easily and effectively. Fits two prong plugs with and without ground - 110-120 volt. Use with existing lockout padlocks or lockout hasps. Accepts 3/16", 1/4" and 9/32" shackle diameter. Labels in English Spanish and French. Patent pending


Durable polyester laminate resists water, grease, and extreme temperatures. Heavy duty construction withstands up to 80lbs of pull out force. (Meets OSHA requirement) prevents accidental removal. Customize with name, department, expected completion. 7/16" dia. brass grommet accepts all safety padlocks.


Exceed OSHA requirement that tags meet 50 pound pull strength at over 90 pounds. Graphics are fused at over 300 degrees so there are no edges to peel or curl. Guardian Extreme tags are reusable: write with permanent marker when done wipe off with Isopropryl Alcohol and the tag is ready to use again. Guardian Extreme tags have no grommet to corrode or delaminate. Master Lock™s new patent-pending process fuses graphics into durable 100% recylable polypropylene to create the longest lasting tags...
