Identify the right wire size with ease when you use the 3M Scotchlok 557 IDC Pigtail Electrical Connector. Its color-coding offers a quick reference point, and it can hold solid or stranded wires ranging in size from 22 to 16 AWG. Tin-plated for corrosion resistance, the brass element of this connector provides good conductivity and creates a dual-element connection. This connector is UL Listed, CSA Certified and RoHS 2011/65/EU Compliant.