Hellermanntyton brass conduit connector sc sm series hellermann tyton 166 30412 the hellermanntyton 166 30412 sc16 sm pg11 is a brass connector for metallic conduit from the sc sm series the connector has a swivel external pg11 thread and comprises of two parts the shell and the body the connectors have been nickel plated hellermanntyton 166 30412 sc16 sm pg11 brass conduit connector pg11 13mm