EGT Sensors (4.7mm)

Primarily designed to be connected directly to MaxxECU to monitor exhaust gas temperature. 
4.7 mm thickness of the sensor. This is the most common size by far. 
 
Uncovered tip: Faster to respond to temp changes. Can be damaged for more easily. 
Covered tip: Slower to respond to temp changes. More durable. 
 
For tapered thread compression fitting to the stainless steel bung: about 2.5 turns to finger tight, then 3/4 of a wrench turn.
For tapered thread compression fitting to the mild steel bung: about 3.25 turn to finger tight, then 1 wrench turn.

What is important is that the threads do not leak. If the fitting is overtightened with a wrench the fitting will be impossible to remove. It is important that the fitting is not overtightened.