The Masterlock 406RED Zenex™ Lockout non-conductive padlock has dielectric protection and is non-sparking, with a composite nylon shackle. It is the optimal safety padlock, designed exclusively for a Lockout/Tagout system. It is durable, standardised, substantial and identifiable for OSHA 1910.147 compliance. The ockout padlock has a Zenex™, UV stable composite body and 6 mm diameter composite nylon shackle, is corrosion and chemical resistant and can withstand temperatures ranging from -57 ° C to +177 ° C. The body sides and faces can be laser-engraved for permanent identification. Includes 'Danger' and 'Property of' padlock labels. Key retaining, supplied with a single key.