Thread Ring Gauges
GO / NOGO GAUGING
A Thread ring GO gage checks the maximum minor diameter and the maximum pitch diameter size in a part, the NOGO checks for the part not to exceed the minimum pitch diameter size on a part
Gauge Types Available
Solid Type
AGD Design - Adjustable Type
Standard Solid Type Thread Ring Gages, NO/NOGO
All AGD Thread Ring Gages are manufactured to ASME/ANSI B1.2 or B1.16M. Each thread ring gage is made of hardened Tools Steel
*Requires Setting Plug
Thread Types Available
• M – ISO metric thread
• MF – ISO metric fine thread
• G – Whitworth pipe thread
• BSW – British Standard Whitworth thread
• BSF – British Standard Whitworth fine thread
• R – Tapered Whitworth pipe thread
• Pg – Steel conduit thread
• MF-EL – Electrical conduit thread
• UNC – Unified national coarse thread
• UNF – Unified national fine thread
• UNEF – Unified national extra fine thread
• UN/UNS – Unified national thread, Unified national special thread
• UNJC – UNJC Unified national coarse thread
• UNJF – UNJF Unified national fine thread
• NPT – American Standard taper pipe thread
• NPTF – American Standard taper pipe thread
• Tr – ISO metric trapezoidal thread
• ACME / Stub Acme
Sizes Available
Our Thread Ring Gauges can be manufactured to the sizes:
- Nominal Diameters: 1 – 250mm
- Left hand threads and any class of fit or workpiece dimensions
Standards Available
Our Thread Ring Gauges can be manufactured to the following standards:
- Metric to ISO 1502 / BS919 / ANSI B1.16M
- Inches to ANSI / ASME B1.2: 1983
- Japanese Standards: JIS 0251
Material Available
The GO/NOGO rings can be supplied in the following material:
- Hardened tool steel
- DLC (diamond like carbon coating)
- Chrome Plating
