Twist-On Wire Connectors, Color Black, For Conductor Material Copper, Maximum Temperature 302 Degrees F, Maximum Voltage 600 V, Minimum Wire Combination (1) 18 AWG with (1) 20 AWG, Maximum Wire Combination (2) 14 AWG, Contact Finish Zinc, Contact Material Steel, UL 94 Flammability Rating V-0, Maximum Conductors 5, Standards CSA Certified, UL Listed, Wire Connector Style Standard, Compatible with Product Type High Temperature, Fill Material Not Applicable. This item has been restricted from sale in the following state (s): []