No. 1 x 72 UNF NOGO Thread Ring Gauge Right-Hand, Hardened Gauge Steel ANSI/ASME B1.1 2A - Metav IndustryLine

Take advantage of a compact, standards-based no‑go ring that secures thread conformity and reduces assembly faults; the combination of ANSI/ASME compliance, hardened gauge steel, and precise 72 tpi geometry supports reliable quality control. Order the gauge directly via Metav Werkzeuge or ask the consultants for application advice.

Thread ring gauge UNF No. 1 x 72 — No‑go (ANSI/ASME B1.1, 2A) by Metav IndustryLine

The Thread ring gauge UNF No. 1 x 72 is a right‑hand No‑go reference gauge designed for inspection of UNF threads according to ANSI/ASME B1.1 standards in industrial and workshop environments.

• ANSI/ASME B1.1 compliant inspection tool
• No‑go reference for thread conformity
• Hardened gauge steel construction
• Right‑hand thread, 72 tpi specification

Ensure assembly reliability with standardised rejection criteria

A dedicated No‑go ring provides an unambiguous pass/fail decision that prevents oversize threads entering production. The gauge conforms to ANSI/ASME B1.1, specifying the acceptance limits for UNF threads; the built‑in 2A tolerance class ensures the instrument checks mating male threads against a defined tolerance envelope. By applying a calibrated reference rather than a subjective visual check, inspection cycles become repeatable and measurable, minimising downstream rework and assembly failures.

Robust materials for long service life and consistent readings

Manufactured from hardened gauge steel, the ring resists wear from repeated engagement and maintains dimensional stability during routine use. The material choice reduces the frequency of replacement and supports consistent repeatability across inspection runs. The compact form factor and 0.1 kg mass make the gauge easy to handle at the bench or inline inspection station while offering the mechanical stiffness required for reliable engagement with the mating thread.

Clear geometry for rapid differentiation on the shop floor

The gauge’s 72 tpi geometry and right‑hand orientation match the thread form commonly specified for the No. 1 UNF size, enabling fast, tactile verification during production sampling. As a No‑go member of a Go/No‑go system, this ring intentionally does not assemble onto acceptable screw threads; its function is to detect oversize or out‑tolerance profiles before parts proceed to assembly. The straightforward tactile result speeds inspection throughput without sacrificing precision.

Practical compatibility with existing inspection routines

Integration into inspection workflows is straightforward: the ring is used where a quick, definitive check is required, such as incoming inspection, first‑article verification or random spot checks during production. The compact gauge is suitable for workshop benches and metrology benches alike and complements measuring equipment and gauges from the same family. Use alongside documented sampling procedures to maintain batch traceability and to support corrective action when nonconformities arise.

For tailored supply and expert guidance on the Metav IndustryLine thread ring gauge, contact Metav Werkzeuge in Emmerich for specification matching, delivery and application support.

Technical Data

• Article number: M315.971.F
• GTIN: 4054469180618
• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Designation: Thread ring gauge UNF No. 1 × 72
• Tolerance class: 2A

Core data

• Size designation: No. 1
• Thread count: 72 tpi
• Mass: 0.1 kg
• Eclass: 21170214

Special features

• Right‑hand thread
• No‑go reference gauge
• Category: Gauges / Measuring devices
• Customs tariff number: 90173000
• Label: Gewinde‑Lehrring UNF NOGO, No. 1 x 72 ANSI B1.1 / 2A

FAQ

What is the primary function of this ring gauge?
The thread ring gauge is a No‑go reference for UNF threads; the Metav IndustryLine No‑go ring checks whether a male thread exceeds the acceptable envelope defined by ANSI/ASME B1.1 and the 2A tolerance class.

Can this gauge be used for both inspection and assembly checks?
This ring is intended for inspection only as a No‑go member; it detects oversize or out‑tolerance threads and is not a functional mating part for assembly.

What material and durability features can be expected?
Made from hardened gauge steel, the gauge offers wear resistance for repeated engagement and stable dimensional performance during routine shop‑floor checks.

Which thread form and specification does the gauge match?
The gauge corresponds to UNF No. 1 threads with a 72 tpi form and complies with ANSI/ASME B1.1 standards for thread limits and fits under the 2A class.

Is the product traceable by article number or GTIN?
Yes, the item is listed under article number M315.971.F and GTIN 4054469180618 for clear traceability in inventory and procurement records.

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