Gardner Bender 19-001 WireGard Screw-On Wire Connectors, 22-16 AWG, Electrical Wire Nut, 14 pk, Grey DESIGNED TO LAST: Designed to require fewer turns to reach required torque and meet or exceed UL pull out and dielectric test requirements INDUSTRY STANDARD color coded for easy size selection COPPER TO COPPER Connections - Rated at 600V Max FLAME-RETARDANT PROPERTIES resist heat distortion up to 105C (221F) TIGHT, SQUARE-WIRE SPRING makes quick, secure connections for positive continuity UL LISTED: Canadian and U.S. requirements WIRE RANGE: 1 #20 with 1 #22 (Min) to 2 #16 (Max) Color-coded for easy size selection Makes quick, secure connections for positive continuity, tightens without ratcheting, yet removable for re-use Tough, thermoplastic shell shields against environmental extremes, smooth surface eliminates porosity and cracking Resists chemical action from hydrocarbons, dilute acid or alkaline solutions Flame retardant properties resists heat distortion up to 105-Degree C, 221-DegreeF