This K Thermocouple Ntk72m8b Has A M8 X 1threaded Melt Probe For K-type Thermocouple Applications. This Is A High Temperature Thermocouple For Continuous Usage At -328 To 2100 Degrees F. The Temperature Probe Has A 1/2" Swivel Section That Can Fit Into Shallow Holes, And Provide Accurate Thermcouple Readings In Deeper Holes, Too. This High Temperature Sensor Has 72" Of Stainless Steel Braid Leads With Spade Lugs On The End.