No. 12 x 24 Thread Go Ring Gauge UNC 2A, Hardened Gauge Steel, ANSI/ASME B1.1/B1.2 - Metav IndustryLine

Take advantage of the combination of fast, repeatable thread control and robust, hardened gauge steel for consistent production quality; order directly via Metav Werkzeuge or consult the technical team for specific application advice.

Thread Ring Gauge UNC GO, No. 12 x 24, 2A — Thread ring gauge (ANSI B1.1) by Metav IndustryLine

The Thread Ring Gauge UNC GO, No. 12 x 24, 2A is a hardened gauge steel GO ring designed for quick pass/fail verification of external UNC threads to the ANSI/ASME B1.1 tolerance system.

• No. 12 x 24 UNC GO ring
• Hardened gauge steel construction
• Tolerance class 2A to ANSI/ASME B1.1
• Rapid pass/fail thread inspection

Consistent conformity to ANSI standards for production control

The GO ring serves as a straightforward, objective control tool where tolerance class 2A and ANSI/ASME B1.1 form the reference framework. By matching the nominal geometry of the thread, the gauge enables immediate acceptance or rejection without complex measurement setups. Manufactured from hardened gauge steel, the component maintains its form under repeated use and provides a durable contact surface for routine thread control. This translates into fewer measurement disputes and a reproducible inspection baseline for shop-floor quality assurance.

Faster inspection cycles and reduced rework on the shop floor

Designed for rapid evaluation, this GO ring minimises downtime during batch inspections. The tool supports a straightforward pass/fail inspection workflow that can be performed at the lathe, milling cell or incoming goods inspection point, cutting cycle time for verification and reducing subsequent rework. The compact geometry and robust surface finish make it easy to handle, while the standard-compliant design reduces the need for additional gauging steps. For production environments where throughput and traceability matter, the ring offers a practical balance of speed and repeatability.

Practical suitability for machining and quality teams

Engineers, fitters and quality inspectors benefit from a concise control method when dealing with UNC fastenings. The gauge is particularly well suited to workshops and production runs that specify No. 12 x 24 UNC threads and require a clear go/no-go decision at the point of manufacture. Its hardened construction and standard reference eliminate ambiguity in routine checks, helping teams to maintain assembly fit and minimise defective assemblies. Confidence in thread conformity supports downstream processes and contributes to reliable product performance.

For precision thread control using Metav IndustryLine GO gauges, contact Metav Werkzeuge for tailored advice and to arrange supply — eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: M315.949
• GTIN: 4054469180120
• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Thread size: No. 12 x 24 UNC
• Tolerance class: 2A
• Pitch: 24 tpi
• Weight: 0.1 kg

Facts

• Type: GO thread ring gauge
• Use: external thread verification
• Inspection: pass/fail
• Category: Gauges / Thread control

Special features

• Hardened gauge steel construction
• ANSI/ASME standard conformity
• Compact, robust design
• SKU: M315.949

FAQ

What does a GO ring gauge check?
A GO ring gauge checks whether an external UNC thread conforms to the nominal geometry; the Thread Ring Gauge UNC GO, No. 12 x 24, 2A allows immediate pass/no-go assessment.

Which standard does this gauge follow?
The gauge is manufactured to the ANSI/ASME B1.1 specification and applies the defined tolerances for tolerance class 2A.

Is the material specified for long-term use?
Yes, the ring is made from hardened gauge steel, chosen for wear resistance and stable performance during repetitive inspection cycles.

Which size and pitch are covered by this gauge?
This tool is for No. 12 x 24 UNC threads, with a 24 tpi pitch; refer to SKU M315.949 for ordering and stock details.

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