NSI Easy-Twist™ WWC-Y-CJ Twist-On Winged Wire Connector, Thermoplastic Shell Style, Fixed Spring, 18 to 10 AWG Wire

EASY-TWIST™ Winged type deep surface ridges and swept-back wing design provides better grip and increased torqueing ability. Square wire spring provides secure gripping of conductors. Flame retardant UL 94V-2 thermoplastic shell provides excellent electrical insulation.