Technical Data:
Product type: Go thread ring gauge
Material: High-quality special gauge steel
Finish: Completely hardened, seasoned and finely polished
Thread profile: Full thread profile
Effective and core diameters: Correspond to the largest dimension of the external thread
Thread standard: ISO DIN 13
Thread designation: M39
Pitch: 4,0mm
Tolerance: 6g

Application:
For checking the go condition of external threads.