No. 5 x 40 UNC Nogo Thread Ring Gauge, 2A, Hardened Gauge Steel, ANSI/ASME B1.1/B1.2 - Metav IndustryLine

Take advantage of a combination of fast, standards-based pass/fail inspection and long-term wear resistance for consistent thread quality control. The hardened gauge steel construction and conformity to ANSI/ASME B1.1 with 2A tolerance secure repeatable results on the production line. Order the gauge directly via Metav Werkzeuge or consult our advisors for specification matching.

UNC No‑Go Thread Ring Gauge No. 5 × 40, ANSI/ASME B1.1 — hardened gauge steel (Metav IndustryLine)

The UNC No‑Go Thread Ring Gauge No. 5 × 40 is a hardened ring gauge for rapid verification of external UNC threads to ANSI/ASME B1.1 tolerances in workshop and production environments.

• Hardened gauge steel construction
• ANSI/ASME B1.1 standard conformity
• Tolerance class 2A for precise inspection
• No‑Go function for clear pass/fail checks

Rapid, standards-based pass/fail inspection for production lines

A No‑Go thread ring gauge delivers an unambiguous result: a correct external thread will not enter the no‑go side. Built to ANSI/ASME B1.1 specifications and rated 2A, this gauge simplifies thread verification by limiting interpretation to a single check, which reduces inspection time and human error. The specified No. 5 × 40 geometry matches UNC thread practice, enabling immediate acceptance or rejection of parts and supporting higher throughput in repetitive inspection tasks.

Long service life through hardened construction and wear resistance

Made from hardened gauge steel, the ring resists wear and maintains a stable limit dimension across many inspection cycles. This durability reduces the frequency of replacements and supports reproducible measurements over time. Supplied as a compact ring intended for handheld use or fixture mounting, the item marked M315.975 combines low mass with robust surface hardness, lowering the total cost of ownership by extending usable life while preserving thread integrity during routine quality control.

Clear traceability and straightforward workshop integration

Marked with its GTIN and classification for procurement systems, the gauge fits formal quality processes and stock management. As a simple mechanical limit gauge it requires no electronics, enabling straightforward integration into existing inspection stations and first‑off checks. Where rapid decisions are needed on the shop floor, the proven limit‑gauge principle provides consistent outcomes while supporting standardised documentation and assembly control procedures.

Contact Metav Werkzeuge for tailored advice on the Metav IndustryLine No‑Go thread ring gauge M315.975 and secure the right gauge for production requirements

Technical data

• *SKU: M315.975
• *GTIN: 4054469180687
• *Weight: 0.1 kg
• *Size: No. 5
• *Threads per inch: 40
• *Tolerance class: 2A
• *Standard: ANSI/ASME B1.1/B1.2
• *Material: hardened gauge steel
• *Classification: eCl@ss 21170214
• *Label: Gewinde‑Lehrring UNC NOGO, Nr. 5 x 40 ANSI B1.1 / 2A

Facts

• *Article type: No‑Go thread ring gauge
• *Application: external UNC threads
• *Mass: 0.1 kg
• *Pitch: 40 TPI
• *Standard reference: ANSI/ASME B1.1

Special features

• *No‑Go limit for quick pass/fail verification
• *Hardened gauge steel for wear resistance
• *Compact form factor for fixture or handheld use
• *Suitable for production and workshop quality control
• *Category: Gauges / Thread ring gauge

FAQ

What is the intended use of this ring gauge? This No‑Go ring gauge is intended for pass/fail inspection of external UNC threads according to ANSI/ASME B1.1, ensuring quick verification on the shop floor.

Does the gauge conform to a recognised standard? Yes, the gauge is manufactured to ANSI/ASME B1.1/B1.2 specifications and is specified as 2A tolerance for external threads.

Which material is the gauge made from and why? The ring is made from hardened gauge steel, selected for its wear resistance and dimensional stability under repeated use.

How does the No‑Go function support quality control? The No‑Go side provides an immediate reject criterion: if the tool fits, the thread is oversize. This removes ambiguity from go/no‑go assessments and speeds up inspection cycles.

Can this gauge be used in automated inspection fixtures? The compact form and robust construction allow mounting in simple fixtures; confirm fixture compatibility with Metav Werkzeuge if specialised mounting is required.

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