More power with every twist. IDEAL® Wing-Nut® Wire Connectors are designed with high-leverage wings that provide extra torque for quick work on any electrical job. Featuring a copolymer shell that expands for smooth, progressive tightening, and a square-cut inner spring that firmly grips wire, Wing-Nut® delivers dependable connections on a wide range of wire combinations. The Model 454® "Big Blue" wire connector is designed to accommodate connections ranging from 3 #12 AWG to 1 #6 with 2 #8 AWG.