Thread Setting Plugs Instrument Information
A metallic cylinder, containing a handle, machined to a precise diameter and threaded to a precise size. The gage is used to set an adjustable thread ring gage. The ring gage is screwed onto the thread setting plug and tightened or loosened to fit onto the plug properly.

Common Uses
- Setting adjustable thread ring gages.
Common Types
- NPS (National Pipe Straight)
- NPSF (National Pipe Straight Fuel)
- BSPP (British Standard Pipe Parallel)
- ISO (International Organization for Standardization)
- JIS (Japanese Industrial Standard)
- Buttress
- ACME
Measurement Parameter
- Inside Diameter (in, cm)
- Threading
Gage Type
- Attribute
Calibration Discipline
Calibration Equipment Used
- Universal Linear Measuring (ULM) System