Six holes for padlocks (sold separately) provide the ability to require multiple authorizations to allow access to one locked out device or energy source</br>Heavy gauge (1/16") steel jaw is zinc plated to resist corrosion?? and fits into holes 5/16"or larger</br>Non-conductive?? red vinyl handle coating improves grip and protects equipment from scratching</br>Hasp locking holes accommodate padlock shackles up to 9/32"outside diameter</br>Limited lifetime warranty</br><br/>http://www.amazon.com/gp/product/B007NAFZU0II