The Garland 2200600 Range SIT Type 18" Metric Thermocouple 9MM Thread senses flame temperature at the pilot or burner assembly and produces a small electrical signal when heated. This signal is used by the gas control system to confirm flame presence before maintaining gas flow to the burner. The 9MM metric threaded connection secures the thermocouple within the designated mounting po... https://partsfe.com/metric-thermocouple-18-for-garland-part-2200600