Conduit Combination Coupling; Installation Compression EMT to Screw-In Flexible Metal Conduit; Trade Size 1/2 Inch; Material Ball Burnished Mirror Smooth Die-Cast Zinc; Size 1-1/8 Inch Dia x 1-5/8 Inch L; Standard Package 500; Approval UL 514B; Used On EMT/Flexible Metal Conduit; ROHS/TCLP Compliant; Applicable Standard Federal Specification A-A-50552, NEMA FB-1