Vermont Gage 361162010 Threaded Ring Gage 1-8 Unc Class 2A Go

Product Description

The VERMONT GAGE 361162010 is a single-ring threaded ring gage used to verify the external thread dimensions of fasteners and threaded components. Designed to the Go classification for Class 2A tolerance, this gage checks that a male thread falls within the acceptable maximum-material condition limit. Machined from tool steel for dimensional stability and wear resistance, it is calibrated to NIST-traceable standards. Toolroom technicians, quality control inspectors, and manufacturing professionals use this gage during incoming inspection, in-process verification, and final acceptance testing of externally threaded parts.

This gage is intended for use with 1-8 UNC (Unified National Coarse) external threads classified to the 2A tolerance standard, which covers the majority of general-purpose inch-series fasteners and threaded rod used in industrial and commercial applications. It is a single-ring design, meaning it covers the Go function only. Machinists and QC technicians working in production environments rely on this tool to confirm thread form and pitch diameter conformance before parts move forward in the assembly or shipping process.

Key Features

• Go-class ring gage confirms external threads meet Class 2A maximum-material condition limits
• Thread size 1-8 UNC for general-purpose inch-series coarse-thread applications
• Tool steel construction provides hardness and dimensional stability under repeated use
• Calibrated to NIST-traceable standards for reliable measurement traceability
• Single-ring design dedicated to the Go function for straightforward pass/fail inspection

Compatibility

Designed for use with externally threaded parts conforming to the 1-8 UNC thread form at Class 2A tolerance. Suitable for verifying bolts, studs, threaded rod, and similar fasteners produced to ANSI/ASME B1.1 inch-series thread standards.

Installation Notes

Threaded ring gages are handled and used by toolroom machinists and quality control inspectors, not installed in a mechanical system. Store the gage in a clean, dry location away from chips and coolant to prevent corrosion and dimensional drift. Apply a light coat of clean oil after each use to protect the precision thread form. Do not force the gage onto a thread; if resistance is excessive, the part should be evaluated rather than the gage forced through.