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. In fact, the red, Model 452®, Wing-Nut® will accommodate 2 #18 AWG to 4 #10 AWG wires - the widest range winged connector in the industry.High-leverage, contoured wing provides superior torque on every twistWide range, live-action spring handles small combinations and expands to accommodate large combinations as you need itCopolymer shell expands for smooth, progressive tightening providing dependable connectionsDeep skirt that provides maximum dielectric protection to prevent flash-over and turned-back strandsRemovable for repeat usage on same size or larger combinationsLargest winged connector range in the industry - combinations from minimum 2 #18 AWG to up maximum 4 #10 AWG 30-452 #452 WING-NUT CONNECTOR