The Leviton 8362P Leviton s black white line of industrial grade plugs and connectors provide great quality and performance and the best features. The straight blade wiring devices are available in a variety of National Electrical Manufacturers Association configurations. his item is made of super tough nylon. The flammability is rated V2 per UL94. This item is made of super tough nylon. The flammability is rated V2 per UL94.