No. 3 56 TPI Thread Ring Gauge UNF Go, Right-Hand, Hardened Gauge Steel, ANSI B1.1 2A - Metav IndustryLine

Take advantage of a compact, standards‑compliant check with hardened gauge steel and an exact 2A tolerance class for reliable, repeatable thread inspection; order the gauge directly via Metav Werkzeuge or contact our consultants for advice.

Thread ring gauge UNF No. 3 × 56, GO — GO ring gauge (ANSI B1.1 / 2A) by Metav IndustryLine

Thread ring gauge UNF No. 3 × 56, GO is a right‑hand GO ring intended for verifying external threads to ANSI/ASME B1.1 tolerances in production and quality control environments

• ANSI B1.1 / 2A standard compliant
• Hardened gauge steel construction
• GO ring for UNF No. 3 × 56 TPI
• Compact, workshop-ready inspection tool

Standards-based measurement that prevents rework

The GO ring is manufactured to ANSI B1.1 / 2A tolerances, providing an objective go/no‑go check that reduces ambiguity in thread acceptance. Made from hardened gauge steel, the ring maintains form stability and wear resistance under repeated use, which supports repeatability on the shop floor. The specified 2A tolerance class ensures compatibility with parts produced to the same standard, enabling quick decisions during incoming inspection or in‑process checks and thereby reducing the risk of costly rework or rejects.

Designed for small‑format threads and fast inspection cycles

With the designation UNF No. 3 × 56 TPI, this GO ring is intended for fine, compact threads frequently encountered in precision assemblies. Its compact footprint and light mass make it simple to handle at the bench; the right‑hand thread configuration matches typical production orientations. As a GO‑only ring, it offers immediate verification that an external thread meets the lower limit of the tolerance band, streamlining inspection routines where a fast pass/fail result is required rather than a full dimensional readout.

Practical advantages for quality teams and production

Integrating this GO ring into quality workflows delivers clear, measurable benefits: faster throughput during inspection, consistent acceptance criteria tied to an established standard, and a durable tool that withstands repetitive use. The material choice and manufacturing standardisation translate into lower lifetime costs through reduced uncertainty and fewer inspection disputes. Combined with Metav’s distribution and technical support, the gauge is a practical investment for workshops and inspection stations that demand trustworthy, repeatable thread checks.

Contact Metav Werkzeuge today to arrange supply or technical advice for this Metav IndustryLine GO ring gauge and ensure seamless integration into existing inspection routines

Technical data

• Article number: M315.943.F
• GTIN: 4054469180014
• Tariff number: 90173000

Key measurements

• Size: No. 3
• Thread pitch: 56 TPI
• Tolerance class: 2A
• Weight: 0.1 kg
• Standard: ANSI/ASME B1.1/B1.2

Materials & features

• Material: hardened gauge steel
• Function: GO ring gauge (verification of external threads)
• Thread direction: right‑hand thread
• Application: workshop and production inspection

FAQ

What standard does this ring gauge follow?
This GO ring gauge is manufactured to ANSI/ASME B1.1 specifications and supplied as a 2A tolerance class gauge.

Is the gauge suitable for UNF threads?
Yes, the gauge is specifically for UNF No. 3 × 56 TPI external threads and functions as a GO ring for pass/fail checks.

What material is used for the gauge?
The tool is produced from hardened gauge steel, chosen for stability and wear resistance under repeated use.

Can this gauge be used on left‑hand threads?
No, this particular ring is a right‑hand thread gauge; left‑hand threads require the corresponding left‑hand gauge.

Who supplies this gauge and what is the SKU?
The gauge is supplied by Metav IndustryLine, SKU M315.943.F, suitable for workshop and production inspection.

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