The Klein 45201-Lockouts with Interlocking Tabs are specifically designed for locking out power sources such as disconnects, switches, and panel boxes. The lockout is designed with a double interlocking hasp of tempered steel with patented interlocking tabs for extra security. The 45201-features riveted construction, hasps that are bright zinc-plated (1-1/2-Inch closed hasp I.D.), and six-hole locking bodies coated with red vinyl plastic. Holes will accept up to 5/16-Inch (8 mm) diameter shackles. Since 1857, Klein Tools has manufactured the world's finest hand tools. Today, Klein Tools is the No.1-choice among professional tradesmen. We manufacture more than 3,000 tools and accessories, including pliers, cable and bolt cutters, wire strippers, voice-data-video tools and testers, fish tapes, conduit benders, drill bits, insulated tools, gloves and many other high-quality products. Klein Tools' dedication to quality and innovation continues with products available for professional tradesmen worldwide.