1 3/8" UNF Thread Go/No-Go Ring NOGO Right-Hand 12 TPI ANSI B1.1/B1.2 - Metav IndustryLine

Take advantage of precise, standard‑compliant inspection with a hardened gauge steel construction and an ANSI/ASME B1.1 reference; the combination reduces rework and ensures fast in‑process verification. Order the thread gauge directly via Metav Werkzeuge or ask the consultants for configuration advice.

Thread ring gauge UNF NOGO — 1 3/8" x 12, ANSI/ASME B1.1, Metav IndustryLine

The thread ring gauge UNF NOGO, 1 3/8" x 12, ANSI/ASME B1.1 / 2A is a NOGO inspection ring for quick verification of external UNF threads in production and quality control environments

• Hardened gauge steel construction
• Conforms to ANSI/ASME B1.1 standard
• NOGO ring for UNF 1 3/8" x 12

Fast, unambiguous thread verification to protect production flow

The NOGO ring enables immediate assessment of an external UNF thread against the ANSI/ASME B1.1 specification. As a NOGO instrument, the gauge is designed to fail any external thread that exceeds the upper material limits, preventing oversize threads from advancing through assembly or dispatch. This quick go/no‑go check shortens inspection time, lowers the risk of assembly faults and reduces costly rework, making it a pragmatic choice for busy shopfloors and incoming inspection points.

Robust construction that sustains repeated use and measurement integrity

Made from hardened gauge steel, the ring offers high wear resistance and dimensional stability under frequent handling. The material choice preserves the functional limit over many cycles, which supports reproducible results and predictable maintenance intervals. The 2A tolerance designation indicates the gauge matches a standard external thread tolerance class, providing confidence that acceptance criteria align with production drawings and procurement specifications.

Clear standards compliance and straightforward application in quality systems

Compliant with ANSI/ASME B1.1/B1.2, the ring gauge is suitable where adherence to established UNF thread standards is required. The right‑hand thread configuration corresponds to typical UNF fastener designs and simplifies selection at the point of inspection. Using this type of NOGO ring in regular sampling plans helps maintain traceable quality procedures and supports acceptance decisions based on objective, repeatable criteria rather than subjective assessment.

For reliable, standard‑compliant thread inspection equipment from Metav IndustryLine, contact Metav Werkzeuge to arrange supply or discuss compatibility with specific thread series and inspection routines — info@metav-werkzeuge.com / +49 2822 7131930

Technical data

• Article number: M315.994.F
• GTIN: 4054469181172
• Material: hardened gauge steel
• Size: 1 3/8 in
• Pitch: 12 tpi
• Norm: ANSI/ASME B1.1/B1.2
• Tolerance class: 2A
• Thread direction: right‑hand
• Weight: 0.6 kg
• Tariff code: 90173000

Core data

• Diameter: 1 3/8 in
• Thread pitch: 12 tpi
• Tolerance class: 2A
• Weight: 0.6 kg

Special features

• NOGO ring gauge for external UNF threads
• Hardened gauge steel for wear resistance
• Conforms to ANSI/ASME B1.1/B1.2
• Right‑hand thread configuration

FAQ

What is the purpose of a NOGO ring gauge?
A NOGO ring gauge rejects external threads that exceed the permissible upper limits; this NOGO ring gauge UNF NOGO, 1 3/8" x 12, prevents oversize threads from entering assembly.

Which standard does this ring gauge follow?
The ring gauge is manufactured to ANSI/ASME B1.1/B1.2 and is specified as a 2A tolerance class for UNF external threads.

What material is the gauge made from and why does it matter?
The gauge is made of hardened gauge steel; this ensures wear resistance and dimensional stability for prolonged use in inspection routines.

Can this ring gauge be used for left‑hand threads?
This particular ring gauge is a right‑hand thread configuration; left‑hand thread checks require the corresponding left‑hand gauge variant.

How does the 2A tolerance class affect acceptance criteria?
The 2A tolerance class defines the external thread tolerance band; using this ring gauge aligns acceptance with the standard external thread limits for UNF fasteners.

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