Ring Terminal Insulation Color Blue Insulation Coverage Partial Coverage Insulation Material Nylon Maximum Operating Temperature 221 Degrees F Maximum Voltage 600 V Minimum Wire Size 18 AWG Maximum Wire Size 14 AWG Termination Style Crimp Tongue Width 0.47 in Contact Finish Tin Contact Material Copper Standards CSA Certified UL Listed E9809 Barrel Length 0.5 in Barrel Style Serrated Barrel Compatible with Product Type Copper Conductors Hole Spacing 0.31 in