Hellermanntyton fittings for metallic conduit and metallic overbraid scsb fm hellermann tyton 166 34601 the hellermanntyton 166 34601 scsb12 is a metallic conduit connector with a fixed external thread from the scsb fm series the fitting comprises of two parts the shell and the body the m16 connector has been manufactured from nickel plated brass hellermanntyton 166 34601 scsb16 fm m16 conduit fitting m16 13mm