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>Gold Plated/Finished>Gold ColoredFindings and Components>Terminators>Chain TerminatorGold Plated/FinishedGold Coloredhttp://www.firemountaingems.com/itemdetails/h20a6171fnH20A6171FNConnector, gold-finished brass, 2.5x2.5mm, fits 2mm cupchain. Sold per pkg of 50.//image3.fmgstatic.com/images/pa6171fnb.jpg5.185.18As Low As $0.05 per connector