Crimp N Shrink Heat Shrinkable Terminals & Connectors: Butt Connectors (Crimp N Shrink) K-Spec® Series: 600V Rating, 105ºC, Copper. Advantages of using \"Crimp N Shrink\" Heat Shrinkable Terminals and Connectors Translucent, adhesive lined polyolefin tubing allows visual inspection, prevents corrosion, and provides a waterproof seal . Provides an easy and highly effective means of insulating and protecting terminal connections and splices against moisture, dirt and corrosion . Colour coded tubing with wire gauge imprint provides easy identification of the correct part for the job . 600 Volt Rating