1/4" 32 UNF NOGO Thread Go/No-Go Ring, Right-Hand, Hardened Gauge Steel, ANSI/ASME B1.1/B1.2 - Metav IndustryLine

Take advantage of standards‑compliant thread verification with a hardened gauge‑steel ring and precise 2A tolerance to reduce rework and speed up inspection cycles; order the gauge directly via Metav Werkzeuge or consult the technical team for application advice.

UNEF NOGO Thread Ring Gauge 1/4" x 32, ANSI/ASME B1.1 / 2A — Metav IndustryLine hardened gauge steel

A UNEF NOGO thread ring gauge 1/4" x 32 for quick verification of external fine threads to ANSI/ASME B1.1 standards in production and inspection environments

• Hardened gauge steel construction
• Conforms to ANSI/ASME B1.1 tolerance
• NOGO function for rapid reject assessment
• Compact, shop-ready at approx. 0.1 kg

Rapid, standards-based thread control that reduces downtime

The UNEF NOGO thread ring gauge provides a clear, binary check for external threads, confirming whether a threaded part falls outside the permissible form and size defined by ANSI/ASME B1.1. The NOGO condition signals parts that must be reworked or rejected, simplifying decision-making on the shop floor and lowering downstream failure risk. Using a dedicated ring gauge speeds inspection compared with dimensional measurement alone, enabling faster throughput and more consistent lot acceptance.

Durable construction for repeated shop use

Manufactured from hardened gauge steel, the ring is designed to withstand regular engagement with threaded workpieces while retaining accuracy. The material choice and heat treatment extend service life and reduce wear‑related drift, which in turn lowers the frequency of replacement. The compact mass of approximately 0.1 kg makes the tool easy to handle and store on inspection benches without sacrificing robustness, while the right‑hand thread configuration suits standard assembly orientations.

Clear integration into quality workflows and traceability

Marked to the applicable standard and supplied with an article identity (SKU and GTIN), the gauge supports traceable inspection records and quality audits. The simple pass/fail nature of a NOGO ring streamlines acceptance routines, reducing operator interpretation and training time. For manufacturers who require consistent conformity to 2A tolerance limits on fine UNEF threads, this ring gauge becomes a practical control point that helps prevent costly assembly issues and warranty claims.

Practical advantages for inspection and maintenance planning

Because the ring is dedicated to a specific nominal size and pitch — 1/4" x 32 tpi in this case — calibration intervals and wear checks can be scheduled predictably, improving maintenance planning. The compact design allows it to be kept close to production lines for spot checks, while hardened surfaces reduce the need for frequent replacement. For traceability, include the SKU and GTIN in inspection logs to link rejections to specific batches and tooling conditions.

Choose Metav IndustryLine’s hardened UNEF NOGO gauges for dependable thread control — contact Metav Werkzeuge in Emmerich for specification guidance and order handling at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: M315.980.EF
• GTIN: 4054469180809
• Size: 1/4" x 32 tpi
• Tolerance class: 2A
• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Weight: 0.1 kg
• Customs tariff number: 90173000

Facts

• Thread pitch: 32 tpi
• Nominal diameter: 1/4"
• Tolerance reference: 2A
• Applicable standard: ANSI/ASME B1.1/B1.2
• Mass: 0.1 kg

Special features

• NOGO ring gauge for external threads
• Right‑hand thread configuration
• Hardened gauge‑steel construction
• Category: Thread gauges / inspection tools

FAQ

What does NOGO mean for this gauge?
The NOGO designation indicates the ring is used to verify whether an external thread exceeds the maximum material condition; the UNEF NOGO thread ring gauge 1/4" x 32 marks threads that must be rejected.

Which standard does the gauge check against?
Threads are assessed to ANSI/ASME B1.1 (and related B1.2) requirements; the ring is manufactured to meet the dimensional limits for a 2A external thread class.

Is the material suitable for frequent use in production?
Yes, the ring is produced from hardened gauge steel, giving the gauge the durability required for repeated engagement in a shop environment.

How does this gauge assist in quality control workflows?
A NOGO ring offers an immediate pass/fail result, enabling quick decisions during incoming inspection or in‑process checks and reducing time spent on detailed metrology for obvious failures.

What exactly is measured with the 1/4" x 32 designation?
The specification denotes a nominal diameter of 1/4 inch with 32 threads per inch (tpi) in the UNEF fine series; the ring is matched to that nominal size and the 2A tolerance band.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com