3M Scotchlok Insulation Displacement Wire Connector 560/560B is a double run or tap connector for tap or parallel splicing. Easily connect a (tap) wire end to a through (run) wire, join parallel run wires, and insulate the connection. Use as auto electrical connectors and for general purpose electrical connections on boats, vans or trailers. Polypropylene insulated, self stripping and flame retardant.