No. 5 x 44 UNF Thread Go/No-Go Ring Nogo, Right-Hand, ANSI/ASME B1.1 2A - Metav IndustryLine

Take advantage of a hardened gauge-steel construction and strict ANSI/ASME B1.1 conformity to ensure reproducible thread inspection; the No‑Go function plus right‑hand thread form a compact quality gate for production. Order the gauge directly via Metav Werkzeuge or request specialist advice from our consultants.

Thread ring gauge UNF No. 5 NOGO – ANSI B1.1, 44 TPI (Metav IndustryLine)

A Thread ring gauge UNF NOGO, No. 5 x 44 ANSI B1.1 / 2A is a precision check gauge for external UNF threads, designed to verify that manufactured threads do not exceed the maximum material limit specified by the ANSI standard.

• Hardened gauge steel construction
• ANSI/ASME B1.1 conformity
• No‑Go ring for right‑hand UNF threads

Fast, standards‑based pass/fail decisions for production

The ring provides an immediate, objective verification against the ANSI/ASME B1.1 profile, enabling rapid pass/fail control on the shop floor. With a No‑Go function the gauge confirms that external threads remain within the upper tolerance bound defined by the 2A class; this reduces downstream rework and prevents assembly defects. The compact verification method saves inspection time compared with full-form profile measurement, while delivering a measurable, repeatable quality gate that supports consistent production throughput.

Robust construction for repeatable checks

Manufactured from hardened gauge steel, the ring resists wear and maintains its verification geometry across numerous cycles, which extends service life and reduces replacement frequency. The right‑hand thread form and the fine 44 TPI pitch are implemented to match the intended external thread, so mechanical fit and tactile feedback during inspection are reliable. The solid construction and hardened finish provide a stable reference that is less susceptible to accidental deformation than softer materials, making it suitable for routine in-process controls.

Integrating the gauge into quality processes

The ring gauge is a simple tool for controlling assembly quality and for incoming inspection of threaded parts. Traceability is supported by the SKU and GTIN data included in the technical documentation, allowing the gauge to be recorded in inspection plans and inventory systems. For workshops and production lines seeking to standardise thread checks, this gauge offers a clear, low‑complexity method to enforce upper‑limit tolerances without requiring complex measuring equipment or lengthy operator training.

Contact Metav Werkzeuge for expert guidance on selecting thread gauges or to arrange supply of this Metav IndustryLine No‑Go ring gauge; technical consultants in Emmerich can advise on integration into existing inspection plans

Technical Data

• Article number: M315.975.F
• GTIN: 4054469180694
• Designation: Thread ring gauge UNF NOGO, No. 5 x 44 ANSI B1.1 / 2A

Facts

• Thread pitch: 44 TPI
• Tolerance class: 2A
• Weight: 0.1 kg
• Size designation: No. 5

Special features

• Material: gauge steel, hardened
• Standard: ANSI/ASME B1.1/B1.2
• Type: No‑Go (NOGO) ring gauge
• Thread form: right‑hand UNF
• Category: Gauges / Ring gauges

FAQ

What does "No‑Go" mean for this ring gauge?
The No‑Go function means the ring gauge checks that an external UNF thread does not exceed the maximum material limit; the thread must not accept the No‑Go ring to pass inspection.

Which standard and tolerance class does the gauge follow?
This ring is manufactured to ANSI/ASME B1.1 and corresponds to external thread tolerance class 2A, suitable for general engineering applications.

What thread size and pitch are covered by this gauge?
The gauge is for UNF No. 5 with 44 TPI, matching the specified fine‑pitch external thread.

What is the ring made from and why is that important?
Constructed from hardened gauge steel, the ring maintains its verification geometry under repeated use, ensuring consistent inspection results.

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