Hellermanntyton metallic conduit fittiings with metallic overbraid pcsb fm hellermann tyton 166 33802 the hellermanntyton 166 33802 pcsb16 is a conduit fitting with an m20 fixed external thread for metallic conduit from the pcsb fm series the fitting comprises of two parts the shell and the body the connector has been manufactured from nickel plated brass hellermanntyton 166 33802 pcsb16 fm m20 conduit fitting ip54 m20 13mm