Vermont Gage 361122510 Threaded Ring Gage 12-24 Unc 2A Go

Product Description

The VERMONT GAGE 361122510 is a Go-type threaded ring gage designed to verify external thread conformance on 12-24 UNC fasteners and threaded components. This single-ring gage is manufactured from tool steel and built to Class 2A tolerance standards, making it a reliable inspection tool for thread acceptance in production and quality control environments. The Go designation means the gage must fully pass over an acceptable part, confirming that the thread pitch diameter, lead, and flank angles fall within the upper tolerance boundary. Machinists, quality inspectors, and manufacturing technicians use this gage as part of a standard go/no-go inspection protocol.

This gage is suited for inspecting externally threaded parts — bolts, studs, screws, and machined shafts — cut to the 12-24 UNC thread form. Class 2A represents a general-purpose tolerance class widely used in commercial and industrial fastener applications. The 12-24 designation refers to a number 12 nominal diameter with 24 threads per inch, a common size in light mechanical assemblies, enclosures, and instrumentation hardware. This gage is appropriate for use in machine shops, assembly lines, and receiving inspection stations where thread verification is part of the quality workflow.

Key Features

• Go-type single ring gage for external thread verification on 12-24 UNC threads
• Class 2A tolerance classification for general-purpose commercial thread inspection
• Tool steel construction for wear resistance and dimensional stability
• Calibrated to NIST standards for traceable measurement accuracy
• Single-ring design for straightforward go-type acceptance testing

Compatibility

Designed for inspection of externally threaded components cut to the 12-24 UNC thread form at Class 2A tolerance. Intended for use as a Go ring gage in standard two-gage go/no-go thread inspection setups.

Installation Notes

Thread ring gages are handled and used by quality control technicians and machinists — not installed in the field. Before use, inspect the gage and the part being checked for burrs, chips, or contamination that could affect results. Apply light thread-cutting oil or inspection fluid as appropriate for the material being checked to reduce wear on the gage. Store ring gages in a protected case away from impact and temperature extremes to maintain calibration integrity.