Cupchain connector was designed specifically to accommodate 2mm cupchain. Simply add a dab of glue to secure, place cupchain in connector, push down then bend 2 prongs over with pliers. Connector can also fit other types of cube beads smaller than 2mm in size.
Chain Terminator>Gunmetal>GreysFindings and Components>Terminators>Chain TerminatorGunmetalGreyshttp://www.firemountaingems.com/itemdetails/h20a6173fnH20A6173FNConnector, gunmetal-finished brass, 2.5x2.5mm, fits 2mm cupchain. Sold per pkg of 50.//image1.fmgstatic.com/images/pa6173fnb.jpg4.734.73As Low As $0.04 per connector