160283-100 QuickCable PVC Insulated Stepdown Butt Connector 12-10 / 16-14 Gauge (100 Count) - Rated at 600 Volts. Quality terminals for years of dependable service. Tin plated annealed copper for improved corrosion resistance, maximum conductivity and crimp strength. One end fits 12-10 gauge wire and the other fits 16-14 gauge wire,Rated 600V, 167° F (75° C) except for disconnects, M/F bullets and piggyback 300V, 167° F (75° C),Quality terminals for years of dependable service,Tin plated annealed copper for improved corrosion resistance, max conductivity and crimp strength,Serrated barrels for greater wire retention/pullout strength,Ridged PVC sleeves for improved abrasion resistance,Kits are available