No. 6 x 40 UNF Thread Go/No-Go Ring Gauge Right-Hand ANSI/ASME B1.1 2A - Metav IndustryLine

Take advantage of precise thread control and robust construction to maintain assembly quality: the NO‑GO ring gauge verifies that external UNF threads meet tolerance class 2A and is manufactured from hardened gauge steel for reliable repeatability. Order the gauge directly via Metav Werkzeuge or consult our specialists for application advice.

Thread ring gauge NO‑GO — No. 6 x 40 UNF (ANSI/ASME B1.1) — Metav IndustryLine

A NO‑GO thread ring gauge No. 6 x 40 UNF designed for rapid verification of external unified fine threads in production and quality control.

• NO‑GO check for UNF No. 6 x 40
• Hardened gauge steel construction
• Manufactured to ANSI/ASME B1.1
• Tolerance class 2A for consistent inspection

Ensure thread conformity without slowing production

The NO‑GO gauge offers a simple, objective test that prevents oversized external threads from progressing through assembly. Manufactured to ANSI/ASME B1.1 and specified for UNF No. 6 x 40, the ring provides a definitive pass/fail criterion: acceptable parts must not engage the NO‑GO profile. This clear result reduces ambiguous assessment, speeds throughput in repetitive inspection tasks and supports consistent decision-making on the production line. The standard-based design helps demonstrate compliance during internal audits and supports traceable quality routines.

Built for durability and repeatable measurements

Crafted from hardened gauge steel, the ring resists wear under frequent handling and preserves the inspection limit longer than untreated variants. The right‑hand thread construction reflects the actual fastener geometry, eliminating handling confusion when performing rapid checks. The robust material selection and heat treatment ensure dimensional stability, which in turn keeps calibration intervals predictable and maintenance straightforward. For manufacturing environments that require repeated verification, this construction reduces the likelihood of false rejects and contributes to steady process capability.

Integrates with quality workflows and documentation

As a standardised inspection tool, the gauge fits easily into existing incoming inspection or in‑process control routines. The clear NO‑GO result simplifies staff training and lowers the risk of operator interpretation errors during routine checks. Using the Thread ring gauge NO‑GO, No. 6 x 40 UNF (M315.976.F) in documented control plans helps maintain consistent assembly quality and supports communication between production, quality assurance and purchasing when thread issues arise. For traceability, refer to the SKU and GTIN in procurement and inventory systems to ensure the correct gauge variant is used across sites.

Contact Metav Werkzeuge for a procurement quote and technical consultation on the M315.976.F NO‑GO ring gauge — available directly from Metav Werkzeuge in Emmerich via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: M315.976.F
• GTIN: 4054469180717
• Material: Gauge steel, hardened
• Standard: ANSI/ASME B1.1
• Thread designation: UNF No. 6 x 40
• Tolerance class: 2A

Facts

• Gauge size: No. 6
• Thread pitch: 40 TPI
• Weight: 0.1 kg

Special features

• NO‑GO ring gauge for external thread inspection
• Right‑hand thread
• Hardened construction for extended service life
• SKU: M315.976.F
• eCl@ss: 21170214

FAQ

What is the purpose of a NO‑GO ring gauge?
A NO‑GO gauge is used to confirm that an external thread is not oversized; with the Thread ring gauge NO‑GO, No. 6 x 40 UNF (M315.976.F) a proper part should not engage the NO‑GO profile, providing a clear reject criterion.

Which standard does this gauge follow and why does that matter?
The gauge is manufactured to ANSI/ASME B1.1, which defines unified thread form dimensions; adherence to this standard ensures the M315.976.F matches accepted tolerance and fit expectations for UNF threads.

Can the gauge be used in production for incoming inspection?
Yes, the durable design and unambiguous NO‑GO result make the ring suitable for incoming inspection and in‑process checks where fast decisions are required.

How does tolerance class 2A affect inspection?
Tolerance class 2A specifies the external thread limits for which the gauge is intended; using the NO‑GO ring matched to 2A helps ensure compatibility with mating internal threads produced to corresponding 2B limits.

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