coolant housing

Does any one Know the thread size of the senors found on the bottom coolant housing please? As I am looking to buy an adaptor of Male Threads (sensor with one slider) with Female Threads (3 pin grey Dash Sensor) and can't seem to find any locally. Thank you

pardon the unclear title and fuzzy picture but the camera i had then was causing and i needed to leave. i have this from a purchased engine (which apparently was from a glanza) since the GT has more sensors here. now, the engine is intended for use in a GT which has the extra sensor you can see...