Vermont Gage 361158010 Threaded Ring Gage 7/8-14 Unf

Product Description

The VERMONT GAGE 361158010 is a Go-class threaded ring gage designed to verify the maximum material condition of external threads. Built to a 7/8-14 UNF Class 2A tolerance, this single-ring gage confirms that a machined or fabricated male thread falls within the acceptable upper limit of the tolerance band. Constructed from tool steel for dimensional stability and wear resistance, it meets NIST traceability standards. Machinists, quality control technicians, and tool room personnel use this gage as part of go/no-go acceptance inspection routines on the shop floor or in receiving inspection.

This gage is suited for inspecting 7/8-14 UNF external threads on fasteners, threaded rod, fittings, and machined components where Class 2A thread tolerance is specified. It is commonly used in manufacturing, mechanical assembly, and field verification applications where thread fit and function must be confirmed before assembly. The single-ring design allows straightforward hand threading onto the workpiece for a pass or fail determination.

Key Features

• Go classification confirms maximum material condition on Class 2A UNF external threads
• 7/8-14 UNF thread form for fine-pitch unified thread inspection
• Tool steel construction provides hardness and dimensional stability under repeated use
• NIST-traceable standards compliance supports documented quality inspection processes
• Single-ring configuration for straightforward pass/fail thread verification

Compatibility

Designed for inspection of 7/8-14 UNF Class 2A external threads. Compatible with any male-threaded workpiece conforming to the UNF 7/8-14 thread form where Class 2A tolerance acceptance criteria apply.

Installation Notes

Threaded ring gages are used by machinists and quality technicians and do not require installation in a mechanical system. Handle the gage carefully to avoid dropping or impact damage that can alter calibration. Store in a protective case away from moisture and debris to preserve dimensional accuracy. Periodically verify calibration against a setting plug or certified master per your facility quality plan.