163180-050 QuickCable Premium Nylon Butt Connector 22-18 Gauge Red (50 Count) - Designed for heavy duty applications to resist vibration and moisture. Tin plated annealed copper for improved corrosion resistance, maximum conductivity and crimp strength. Designed for heavy duty applications to resist vibration and moisture,Tin plated annealed copper for improved corrosion resistance, max conductivity and crimp strength,3 part construction contains: inner lug, additional copper sleeve for added strength, crimpability and seamless outer nylon cover,Serrated barrel for greater wire retention/ pullout strength,Operating temperature range from -67º to 221ºF (-55º to 105ºC),Rated 600V