The Bridgeport 281-DC 1/2" To 1/2" Combination EMT To FMC Transition Coupling connects 1/2" EMT to 1/2" flexible metal conduit. Made of zinc, the body provides corrosion resistance for long-term use in most environments. This unit features a set screw end for EMT and a squeeze type end for FMC. These couplings are easy to install and come with Bridgeport's Legendary Locknut. The transition coupling meets all the mechanical and electrical requirements of the National Electric Code.