Ferrule Contact Finish Tin Contact Material Copper Ferrule Diameter 0.19 in Ferrule Material Copper Insertion Length 19/32 in Insulation Color Bare Insulation Material None Maximum Operating Temperature 302 Degrees F Minimum Wire Size 8 AWG Maximum Wire Size 8 AWG Standards CSA C22.2 No 291-14 DIN 46228 Part 1 Barrel Diameter 0.19 in Barrel Finish Tin Plated Barrel Material Copper Compatible Grainger Part Number 376U08 376U38 376U39 377J21 377M39 38YU66 38YU67