By: Dusty Arlia
Published on February 13, 2012
Last Updated on Sunday, July 19, 2015 at 12:09 AM
Total Updates: 6
A wire nut is a plastic cap that screws on top of a wiresplice. The wire nut helps hold the two wires together and insulates the bare wire. Wire nuts come in different sizes to fit different gauge wires and different amounts of spliced wires.