162480-050 QuickCable Nylon Insulated Butt Connector Flared Ends 12-10 Gauge Yellow (50 Count) - Designed for heavy duty applications and superior performance. Tin plated annealed copper for improved corrosion resistance, Maximum conductivity and crimp strength. Serrated barrel for greater wire retention/pullout strength. Operating temperature range from -67º to 221ºF (-55º to 105ºC). Rated to 300V. Designed for heavy duty applications and superior performance,Tin plated annealed copper for improved corrosion resistance, maximum conductivity and crimp strength,Serrated barrel for greater wire retention/pullout strength,Operating temperature range from -67º to 221ºF (-55º to 105ºC),Rated 300V