Thread Plug Gauges

GO/ NO-GO

Thread Plug Gauges

GO

Thread Plug Gauges

NO-GO

Thread Ring Gauges

GO

Thread Ring Gauges

No-GO

Pg

Thread Ring Gauges 

Smooth No-GO 

Smooth Plug Gauges

GO/No-GO

NPT/NPTF

Thread Plug Gauges 

GO/No-GO