Lockout tagout lock is best used for electrical lockout applications as part of a comprehensive OSHA compliant safety program Zenex thermoplastic safety lock body is durable, lightweight, and non-conductive; functions in temperatures from -70 to 350 degrees Fahrenheit Features a cylinder that is reserved for safety padlocks; key retaining feature ensures padlock is not left unlocked 1-1/2 in. (38 mm) Wide lock body with 1/4 in. (6 mm) diameter shackle, 1-1/2 in. (38 mm) shackle length and 25/32 in. (20 mm) width Includes one blue lockout tagout padlock, one key