Hellermanntyton brass conduit connector sc sm series hellermann tyton 166 30414 the hellermanntyton 166 30414 sc20 sm pg16 is a brass connector for metallic conduit from the sc sm series the connector has a swivel external pg16 thread and comprises of two parts the shell and the body the connectors have been nickel plated hellermanntyton 166 30414 sc20 sm pg16 brass conduit connector pg16 169mm