3M(TM) Scotchlok(TM) Electrical IDC Connector 560B, Blue, 18&ndash;16AWG solid/stranded, 14AWG stranded, 100ct High-performing polypropylene insulation ensures there are no shorts, making it ideal for complex circuits when used for parallel splicing or a tap wire Blue connectors let you organize installations and correctly identify wire sizes Makes it simple to connect a tap wire to a run (through) wire electrically via a self-sealing and self-stripping design Its design lets you use it with 18 to 16 AWG solid or stranded wire for taps or 14 AWG stranded for runs Easy conductivity is assured thanks to the brass element construction, and it's plated with tin for powerful corrosion resistance