No. 12 x 28 Thread Go Ring Gauge UNF, Right-Hand, Hardened Gauge Steel, ANSI/ASME B1.1 2A - Metav IndustryLine

Take advantage of a hardened gauge-steel GO ring that complies with ANSI/ASME B1.1/B1.2 and the 2A tolerance class for reliable thread acceptance testing; its compact form and robust finish support repeatable inspections and reduced rework. Order the thread GO ring directly via Metav Werkzeuge or ask our consultants if needed.

Thread GO ring No. 12 x 28 UNF — GO gauge, right-hand, ANSI/ASME compliant

The Thread GO ring No. 12 x 28 UNF is a precision GO gauge for quick acceptance checks of external UNF threads, intended for use in workshop and quality-control environments.

• No. 12 x 28 UNF Go ring
• Hardened gauge steel construction
• Tolerance class 2A for acceptance testing
• Complies with ANSI/ASME B1.1/B1.2

Ensure correct fit at the first inspection

The primary role of a GO ring is to confirm that an external thread meets the maximum material condition and can be assembled or finished without interference. Manufactured to ANSI/ASME B1.1/B1.2, this gauge provides an objective, repeatable check that reduces the need for time‑consuming measurements during series inspections. Using a standardised acceptance tool streamlines quality control, helping to lower scrap rates and speed up throughput on production lines while maintaining compliance with industry norms.

Built for repeatable results and long service life

Constructed from gauge steel and hardened for wear resistance, the ring tolerates frequent engagement with production parts while preserving the inspection limit. The 2A tolerance class specifies the acceptance boundary for external threads, enabling clear go/no‑go decisions without further calculation. The right‑hand thread form and fine 28 tpi pitch are matched precisely to the parts they inspect, so the tool supports consistent results across repetitive measurements, reducing uncertainty and operator-dependent variation.

Practical integration into workshop routines and traceability

Compact and straightforward to use, the gauge slots into standard inspection benches or handheld test procedures and is especially useful in machine shops and assembly areas where rapid verification is required. Marking and traceability are supported by the item identifier M315.949.F and GTIN for inventory control and audit processes. The robust finish minimises the need for frequent rework of the gauge itself, so maintenance cycles remain predictable and downtime is reduced.

For reliable, standard‑compliant thread inspection, request the Metav IndustryLine GO ring M315.949.F from Metav Werkzeuge — contact our Emmerich team at info@metav-werkzeuge.com or call +49 2822 7131930 for ordering and specification advice.

Technical Data

• Article number: M315.949.F
• GTIN: 4054469180144
• Material: Gauge steel, hardened
• Thread size: No. 12
• Pitch: 28 tpi
• Thread direction: Right‑hand
• Tolerance class: 2A
• Standard: ANSI/ASME B1.1/B1.2
• Weight: 0.1 kg

Numbers / Facts

• Pitch: 28 tpi
• Weight: 0.1 kg
• GTIN: 4054469180144

Special features / Versions

• GO ring for external thread acceptance
• Right‑hand UNF profile
• Hardened gauge‑steel construction
• Tolerance class 2A
• ANSI/ASME compliance

FAQ

What does a GO ring check for in a No. 12 x 28 UNF thread?
The GO ring verifies that an external thread meets the acceptance limit for assembly by confirming it engages freely; the Thread GO ring No. 12 x 28 UNF (M315.949.F) indicates that the part is within the maximum material condition for that UNF size.

Is this gauge compliant with recognised standards?
Yes; the GO ring is manufactured to ANSI/ASME B1.1/B1.2, ensuring compatibility with common UNF inspection criteria used in industry.

What material is the gauge made from and how durable is it?
The ring is made from hardened gauge steel, providing wear resistance and long service life under regular inspection use.

Can the GO ring be used for final acceptance in a production environment?
Yes; the tolerance class 2A and adherence to ANSI/ASME standards make the gauge suitable for routine acceptance checks in production and quality‑control processes.

How is the product identified for traceability and inventory?
The gauge is listed as M315.949.F with GTIN 4054469180144 for inventory, audit records and traceability purposes.

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