1" UNF Thread Go/No-Go Ring Gauge 1×12 TPI Right-Hand ANSI B1.1/B1.2, Hardened Gauge Steel - Metav IndustryLine

Take advantage of a hardened gauge steel construction and strict compliance with ANSI/ASME B1.1 to secure consistent thread inspection results; the NOGO function and 2A tolerance class ensure reliable rejection of out-of-spec external threads — order directly via Metav Werkzeuge or consult our specialists if clarification is required.

Thread ring gauge UNF NOGO, 1 x 12 ANSI/ASME B1.1 / 2A — Metav IndustryLine thread gauge, 1" × 12 UNF, hardened gauge steel

Thread ring gauge UNF NOGO, 1 x 12 ANSI/ASME B1.1 / 2A is a NOGO ring gauge for quick go/no-go verification of external 1" × 12 UNF threads, engineered for production and inspection use

• Hardened gauge steel for long service life
• Conforms to ANSI/ASME B1.1 thread standard
• NOGO ring for 1" x 12 UNF external threads
• Tolerance class 2A for reliable inspection

Ensure thread conformity at every inspection

A dedicated NOGO ring provides an unequivocal decision for external thread acceptance: parts that fail the NOGO check are outside allowable limits. Built to the ANSI/ASME B1.1 specification and sized for 1" × 12 UNF threads, this gauge carries a 2A tolerance class, which corresponds to the established external-thread fit system. The clear pass/fail principle speeds up sampling and reduces interpretation errors during inline or bench inspection, improving throughput without sacrificing traceability.

Built for repeatable checks and low maintenance

Constructed from hardened gauge steel, the gauge resists wear and preserves dimensional integrity over prolonged use. The right-hand thread configuration supports standard production orientations and simplifies handling on the shop floor. With a compact mass of 0.6 kg and a robust design, this ring gauge stands up to frequent use and contributes to fewer recalibrations and less downtime, delivering consistent measurement performance and lower life‑cycle costs.

Integrates smoothly into standard quality workflows

The ring gauge suits routine acceptance testing, first-article inspection and sampling plans in machine shops and quality departments. Its binary nature—accept or reject—means operators can make fast, objective decisions, reducing subjective interpretation and improving reproducibility across shifts. Supplied by Metav IndustryLine and tracked under SKU M315.990.F, the gauge supports compliant processes and clear documentation trails for audit purposes.

Discuss inspection needs with Metav Werkzeuge — request technical advice or the Metav IndustryLine M315.990.F UNF NOGO ring gauge by email at info@metav-werkzeuge.com or by phone on +49 2822 7131930, and secure a reliable inspection tool for your production line

Technical data

• Article number: M315.990.F
• GTIN: 4061905047800
• Manufacturer: Metav IndustryLine

Facts

• Size: 1"
• Pitch: 12 tpi
• Tolerance class: 2A
• Weight: 0.6 kg
• Standard: ANSI/ASME B1.1/B1.2

Special features

• Material: gauge steel, hardened
• Right-hand thread
• Function: NOGO ring gauge
• Category: Gauges / Thread gauges

FAQ

What is the purpose of a NOGO ring gauge?
A NOGO ring gauge is used to reject external threads that exceed the maximum material condition; the Metav IndustryLine NOGO ring gauge prevents out‑of‑tolerance parts from progressing in production.

Which thread standard does this ring gauge follow?
The ring gauge is manufactured to ANSI/ASME B1.1/B1.2, ensuring compatibility with standard UNF thread specifications for 1" × 12 threads.

What does tolerance class 2A mean for inspection?
Tolerance class 2A denotes the external thread tolerance grade used for the gauge; it defines acceptable dimensional limits for the external thread being inspected.

Is the material suitable for heavy shop use?
Yes, the gauge is made from hardened gauge steel, which provides wear resistance and longevity for frequent use in production and inspection environments.

How is the Metav IndustryLine M315.990.F identified in documentation?
The gauge is listed under SKU M315.990.F and GTIN 4061905047800 for ordering and traceability.

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