Electrical Wire Connectors Screw Terminals, Wire Nuts W/Spring Insert, Twist Nuts, Caps Connection Assortment Set 172PCS

UL Certified and CSA CertifiedTwist-On Wire Connectors-Standard UL 486C Listed and CSA 22.2 No.188 Certified Tough thermoplastic.UL 94V-2 flame-retardant shell rated for 105°C(221°F)Zinc plated square wire spring wire connectors rated to 600V max for building wiring and 1000V max.Five color-coded to industry standards.No pre-twisting required, push stripped conductors into connector and screw on.60 Gray 14AWG40 Blue 14AWG40 Orange 14AWG16 Yellow 10AWG16 Red 10AWG