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: BS 919
Thread designation: 5/16-18UNC
Tolerance: 2A

Application:
For checking the go condition of external threads.