Build electrical installations more efficiently with these 3M™ Scotchlok™ 558 IDC Run or Tap Electrical Connectors. Their bright red color-coding lets you visually identify their size, and they're self-stripping to save you the step of doing it manually. These durable connectors are excellent insulators and are great for use in applications involving wiring of appliances, PA systems, fixtures, control circuits and even automotive, boat and RV wiring. They're suitable for use indoors and outdoors in extreme temperatures of upto 221 deg F (105 deg C) for trouble-free installations. These dependable connectors are RoHS 2011/65/EU Compliant, UL Listed and CSA Certified, so you can rely on their safety.