Review on 🌡️ Twidec 1/4" Screw Probe Temperature Sensor K Type Thermocouple with 2 Meters Cable - Temperature Range from 0 to 600°C (Model: LT-104) by George Ahmed

The problem is there is less than 1/32" between the bottom of the threads and the inside diameter of the thread gauge ring, probably just under 1/64" that is the only thing holding the threads together so very little tightening force is required to loosen the steps. The threaded part has a 1/4-20 loose fit. The probe is 0.15 inch in diameter and hangs in a threaded ring. The spec for the smaller thread diameter for 1/4-20 is .210", although this gauge is even smaller as it fits loosely.