Closed-End Crimp Connector Color Clear Insulation Material Nylon Maximum Operating Temperature 221 Degrees F Maximum Voltage 600 V Minimum Wire Combination (2) 18 AWG Maximum Wire Combination (2) 12 AWG Contact Finish Tin Contact Material Brass Standards CSA C22.2 No 65 UL 486C Barrel Inside Diameter 0.16 in Compatible Grainger Part Number 376U11 38YU61 Compatible Installation Tool Model Number CT-1550 CT-1551 CT-2500/L (CT-2550CH) Compatible with Series CT