Vermont Gage 361103510 Threaded Ring Gage 1-72 Unf

Product Description

The VERMONT GAGE 361103510 is a Go-type threaded ring gage designed for verifying external thread dimensions on fasteners and threaded components machined to 1-72 UNF Class 2A tolerances. Built from tool steel for long service life and dimensional stability, this single-ring gage allows machinists and quality technicians to quickly confirm that a threaded part will assemble correctly in the field. Calibrated to NIST-traceable standards, the 361103510 delivers consistent, repeatable results that satisfy inspection requirements in manufacturing and production environments.

This gage is used in shops and on production lines where 1-72 Unified National Fine threads are machined or inspected. The 1-72 designation indicates a Number 1 diameter screw thread with 72 threads per inch, commonly found in precision instruments, miniature fasteners, and small-assembly components. The Class 2A fit represents the standard tolerance class for most externally threaded fasteners used in general-purpose applications. Machinists, QC inspectors, and tool room technicians reach for this gage during in-process and final inspection of threaded parts.

Key Features

• Go-type ring gage confirms a threaded part will pass the minimum material condition for 1-72 UNF Class 2A external threads
• Tool steel construction provides wear resistance and dimensional stability under repeated use
• Single-ring design for dedicated Go-function inspection
• Calibrated to NIST-traceable standards for compliance with inspection documentation requirements
• Sized for 1-72 UNF threads, covering precision miniature fastener and instrument applications

Compatibility

Designed for inspection of externally threaded parts conforming to 1-72 UNF Class 2A thread standards. Suitable for use wherever ANSI/ASME Unified National Fine thread gaging at this size and tolerance class is required.

Installation Notes

Thread ring gages are installed and used by machinists, toolmakers, and quality control inspectors — no power source is required. Before use, ensure the gage and the part being inspected are clean and free of chips, burrs, and cutting fluid residue that could affect readings. Store the gage in its protective case when not in use to prevent damage to the precision-ground internal threads. Periodic re-calibration against NIST-traceable masters is recommended to maintain inspection accuracy over time.