Highland™ H-31-POUCH Straight Twist-On Wire Connector, Ribbed Shell Style, Round Wire Spring, 22 to 14 AWG Wire, Aluminum/Copper Wire, Vinyl

3M™ Highland™ wire connectors make it quick and easy to match the right connector to the size of the wire. The shells are designed to withstand temperatures up to 221 deg F (105 deg C). 3M™ Highland™ color coded wire connectors are UL listed, CSA certified, and work equally well with either solid or stranded wire. H-31, H-33 and H-35 connectors are rated to 600 V (1000 V in signs and lighting fixtures).