Sigma Electric ProConnex 18111 AC/MC/Flex 90-Degree Squeeze Connector 1/2-Inch, 1-Pack Terminates ac, mc or fmc/rwfmc to a 1/2-in knockout For aluminum or steel 8/2 - 8/3 ac and mc, and 1/2-in fmc/rwfmc Tri-combo screws included Zinc die-cast construction Product is ul and csa listed