hex fitting/thermocpuple fitting is used in thermocouple/RTD sensor inn plastic, food, pharmaceutical, forging, packaging, home Hex fitting/thermocpuple fitting is part of thermocouple/RTD sensor in plastic, food, pharmaceutical, forging,industry and so on.The specification :Material:SS316,SS304,BrassThreads :NPT1/2,NPT1/4,NPT1/8,G1/2,M24*1.5,etcTo suit Probe OD: 3mm,5mm,6mm,1/4'',1/8'',3/16'', ...