The Masterlock Zenex™ Lockout non-conductive padlocks have dielectric protection and are non-sparking, with either a composite nylon, hardened steel or stainless steel shackle. They are the optimal safety padlock, designed exclusively for a Lockout/Tagout system. They are durable, standardised, substantial and identifiable for OSHA 1910.147 compliance. The lockout padlock has a Zenex™, UV stable composite body and 6mm diameter composite nylon or 4.76mm stainless steel shackle, it 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.