Vermont Gage 361126010 Threaded Ring Gage 1/4-20 Unc

Product Description

The VERMONT GAGE 361126010 is a single-ring threaded ring gage used to verify the external thread dimensions of fasteners, fittings, and machined components with a 1/4-20 UNC thread form. Classified as a Class 2A Go gage, it confirms that a threaded workpiece falls within the acceptable tolerance range for standard commercial and industrial fastener fits. Manufactured from tool steel, it delivers the hardness and wear resistance required for consistent, repeatable gauging in production and inspection environments. Machinists, quality-control technicians, and tool room professionals use this gage as part of standard go/no-go inspection procedures.

This gage is suited for use in machine shops, manufacturing facilities, and quality-inspection stations where 1/4-20 UNC externally threaded parts must meet Class 2A tolerance standards. Typical applications include incoming inspection of threaded fasteners, in-process verification of turned or milled components, and final inspection before assembly. The single-ring design is handled individually and applied directly to the threaded part to confirm dimensional conformance.

Key Features

• Go-type classification confirms workpiece threads fall within the minimum material condition limit for Class 2A fit
• 1/4-20 UNC thread form covers the most common coarse-thread fastener size in North American manufacturing
• Tool steel construction provides hardness and durability for repeated use in production gauging
• Single-ring form factor for straightforward, handheld thread inspection
• Manufactured to NIST-traceable standards for reliable measurement confidence

Compatibility

Designed for inspection of externally threaded workpieces with a 1/4-20 UNC thread form to Class 2A tolerance standards.

Installation Notes

Thread ring gages are used by quality-control technicians and machinists and require no installation in the traditional sense, but proper gauging practice applies. Clean the gage and the workpiece thread of chips, oil, and debris before use to avoid false readings. Apply the gage by hand without forcing; a Go gage should engage the full thread length under its own weight or with minimal finger pressure. Store the gage in its protective case away from other tooling to prevent nicks or corrosion that would affect calibration.