Vermont Gage 361000000 Thread Ring Gage 0-80 Unf 3A

Product Description

The VERMONT GAGE 361000000 is a NoGo thread ring gage used to inspect external threaded fasteners and components to the 0-80 UNF 3A tolerance class. It checks the pitch diameter of a male threaded part to confirm the thread does not exceed the maximum material condition limit. When a threaded part passes the Go ring and rejects the NoGo ring, the pitch diameter is confirmed within the specified tolerance. This gage ships with a certificate of accuracy and is marked with nominal size, threads per inch, class of fit, and pitch diameter values. Machinists, quality technicians, and production inspectors use this tool on the shop floor or in the inspection lab.

This gage is suited for inspecting 0-80 UNF external threads in precision manufacturing environments, including aerospace, electronics, medical device, and instrumentation applications where fine-pitch fasteners are common. The 0-80 thread form is among the smallest unified fine thread series, making a calibrated ring gage essential for reliable go/no-go inspection. Each unit is supplied ready for use and includes custom marking of up to 25 additional characters at no extra charge.

Key Features

• NoGo ring design verifies pitch diameter does not exceed maximum material condition for 0-80 UNF 3A threads
• Supplied with a certificate of accuracy for traceability
• Marked with nominal size, threads per inch, class of fit, and pitch diameter
• Go pitch of 0.0519 inches for reference during calibration checks
• Optional custom marking up to 25 characters included at no additional cost

Compatibility

Designed for inspection of external 0-80 UNF 3A threaded parts. Use in conjunction with the corresponding Go thread ring gage to complete a full pitch diameter acceptance check per unified fine thread standards.

Installation Notes

Thread ring gages are handled and used by quality control technicians and machinists trained in gage use and care. Keep the gage clean and lightly oiled when not in use to prevent corrosion and wear. Do not force the gage onto a threaded part; a NoGo ring should not pass under hand pressure if the thread is within tolerance. Periodic recalibration against setting plugs is recommended to maintain accuracy and measurement traceability.