The Hex-Lok connector has a hex head design that allows for automatic or manual driven installations with a 7/16' socket. These multi-range, copper-to-copper connectors cover most everyday electrical applications. The square wire spring grabs and holds the wires for a secure connection. The long skirt covers stripped wires and the streamlined design provides for compact installations. These connectors are rated at 600V (volt) maximum with a 1000V maximum in lighting fixtures, luminares, and signs. CSA (Canadian Standards Association) and UL (Underwriter's Laboratories) listed.