7/8" x 9 UNC Nogo Thread Ring Gauge, ANSI B1.1 2A, Hardened Gauge Steel - Metav IndustryLine

Reliable go/no-go verification for UNC 7/8-9 threads combined with hardened gauge steel construction and ANSI/ASME conformity ensures fast, repeatable inspections and fewer assembly defects; order directly via Metav Werkzeuge or consult our specialists for application advice.

Thread Ring Gauge UNC NOGO 7/8 x 9, ANSI/ASME B1.1 / 2A — Metav IndustryLine

The Thread Ring Gauge UNC NOGO, 7/8 x 9 ANSI B1.1 / 2A is a precision NOGO ring gauge designed for rapid verification of external UNC threads in production and workshop inspection.

• Hardened gauge steel construction
• ANSI/ASME B1.1/B1.2 compliant
• NOGO checking for UNC 7/8-9 threads
• Tolerance class 2A for thread verification

Faster assurance of threaded assemblies

The primary role of this NOGO ring is to provide a clear pass/fail decision during thread inspection, reducing subjective judgements on the shop floor. Built to the ANSI/ASME B1.1/B1.2 standard and specifying 2A tolerance class, the gauge gives a direct indication of whether an external UNC thread meets the required major- and pitch-diameter limits. The operating principle is deliberately simple: a part that does not enter the NOGO ring is acceptable, enabling fast inspection cycles and minimising production stoppages while maintaining documented quality control.

Durable build for long service intervals

Manufactured from hardened gauge steel, the ring withstands frequent handling and repeated engagement without rapid wear, keeping inspection criteria stable over time. The compact form and modest mass make bench‑level or portable use straightforward; its robustness helps preserve calibration and reduces the need for frequent replacement. This durability translates into reliable batch sampling and fewer unexpected rejections, supporting continuous production where consistent thread fit is critical.

Easy integration into quality routines

The NOGO ring is suitable for line inspection, goods‑in checks and final assembly verification, providing a low‑complexity method to secure thread conformity. As a tactile gauge with unambiguous results, it complements dimensional measuring equipment by offering immediate accept/reject decisions and accelerating throughput. For operations seeking to standardise inspection points, the gauge supports reproducible outcomes and contributes to lower scrap rates and improved assembly reliability across repetitive work flows.

Contact Metav Werkzeuge for tailored advice on integrating the Metav IndustryLine thread ring gauge into inspection plans or to arrange an order from our Emmerich distribution centre

Technical data

• Article number: M315.988
• GTIN: 4054469181011
• Description: Thread ring gauge UNC NOGO, 7/8 x 9 ANSI/ASME B1.1 / 2A

Numbers / Core technical data

• Size: 7/8"
• Pitch: 9 TPI
• Tolerance class: 2A
• Weight: 0.4 kg

Special features / Materials

• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Thread form: UNC
• Function: NOGO ring gauge
• Category: Gauges (thread ring gauge)

FAQ

What is this gauge used for? The Thread Ring Gauge UNC NOGO, 7/8 x 9 is intended to verify whether external UNC 7/8‑9 threads fail the NOGO criterion, allowing quick accept/reject decisions in production.

Which standard does the gauge comply with? The ring conforms to ANSI/ASME B1.1/B1.2 requirements and is manufactured to meet the 2A tolerance class for UNC external threads.

What material is the gauge made from? The Metav IndustryLine NOGO ring is produced from hardened gauge steel to ensure wear resistance and long service life during repetitive checking.

How is the NOGO ring used in inspection routines? Parts are checked by attempting to engage the external thread with the NOGO ring; a part that enters the ring fails, signalling out‑of‑tolerance threads and preventing faulty assemblies.

Is the product traceable by SKU? Yes, the gauge is listed under SKU M315.988 for ordering and inventory purposes.

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