Conduit Coupling; Type Screw-In; Trade Size 3/4 Inch; Material Die-Cast Zinc; Finish Ball Burnished Mirror Smooth; Standard Package 500; Approval UL 514B; Used On Flexible Metal Conduit; ROHS Compliant; Applicable Standard Federal Specification A-A-50552, NEMA FB-1; Hex Width 1-5/16 Inch