3M™ Scotchlok™ Male-Female Disconnect Terminal provides permanent electrical and mechanical connection to a pre-stripped end of a stranded copper wire. It is rated 300V for building wire. The terminal has a butted-seam barrel that is covered by a funnel-designed, seamless brass sleeve to guide the wire into position. The nylon-sleeve insulation is abrasion-resistant and flared to ensure a positive grip. This terminal withstands temperatures of -40 to 221 degrees Fahrenheit (-40 to 105 degrees Celsius). It has durable brass construction for good conductivity and a tin-plated finish for corrosion resistance.