No. 12 24 Tpi Thread Go/No-Go Ring Gauge UNC NOGO, Hardened Gauge Steel, ANSI/ASME B1.1/B1.2 - Metav IndustryLine

Combine robust standards compliance with wear‑resistant construction to secure repeatable go/no‑go checks and reduce assembly rework; the hardened gauge steel body and ANSI/ASME B1.1 conformity ensure reliable verification of UNC threads. Order the gauge directly via Metav Werkzeuge or consult our specialists for application advice.

NOGO thread ring UNC No. 12 x 24 ANSI/ASME B1.1 — hardened gauge steel, 2A tolerance

NOGO thread ring UNC No. 12 x 24 ANSI/ASME B1.1 / 2A is a dedicated no‑go gauge for quick verification of external UNC threads in production and inspection contexts.

• ANSI/ASME B1.1/B1.2 compliant
• Hardened gauge steel construction
• NOGO ring for UNC No.12 x 24
• Tolerance class 2A for thread fit

Engineered for dependable thread verification

The NOGO thread ring is built to give immediate, unambiguous go/no‑go results for external threads. Conforming to ANSI/ASME B1.1, the gauge checks the upper limits of the external thread form so that only parts within the specified 2A tolerance pass assembly requirements. Manufactured from hardened gauge steel, the ring resists wear under frequent use, keeping the inspection criterion stable over many cycles. This translates into fewer field failures and lower rework rates in serial production.

Faster quality control with a tactile pass/fail method

Using a no‑go ring simplifies routine inspections: a tactile fit indicates non‑conformance without the need for time‑consuming measurements. For workshop personnel and quality inspectors, the tactile check reduces decision time and prevents borderline parts from progressing down‑stream. The simple procedure accelerates throughput while preserving strict acceptance criteria, supporting efficient in‑process control and minimising stoppages on the shop floor.

Compact, durable design for inspection benches

The compact gauge is convenient to handle and store on an inspection bench or within a gauge set. With a low mass and solid construction, the ring remains easy to manipulate yet stable during checking operations. The robust material choice and heat treatment ensure long service life even in demanding environments, making it a cost‑effective element of a calibrated tooling set used for thread verification and routine sampling.

Traceable standard conformance for reliable audits

The ring’s specification against ANSI/ASME B1.1/B1.2 provides a clear, auditable basis for acceptance criteria in quality systems. As a dedicated no‑go instrument for UNC No. 12 x 24, it supports documented inspection plans and statistical process control by delivering reproducible results. Inclusion of coded identifiers facilitates inventory and traceability within a calibrated tool register.

For reliable thread verification order the M315.979 NOGO thread ring from Metav Werkzeuge — our Emmerich team will advise on integration into inspection routines and supply chain logistics

Technical data

• Article number: M315.979
• GTIN: 4054469180762
• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2

Facts

• Size: No. 12
• Thread pitch: 24 tpi
• Tolerance class: 2A
• Weight: 0.1 kg
• Tariff code: 90173000

Special features

• NOGO thread ring for UNC external threads
• For production and inspection use
• Durable, wear‑resistant construction
• Compact format for bench inspection

FAQ

What does the NOGO ring check for?
The NOGO thread ring verifies that an external UNC No.12 x 24 thread does not exceed the maximum material limit; the M315.979 NOGO ring provides a simple pass/fail check to prevent oversize threads from being accepted.

Is the ring compliant with recognised standards?
Yes, the gauge is manufactured to match ANSI/ASME B1.1/B1.2 thread definitions so the check is consistent with common engineering and inspection specifications.

Which materials is the gauge suitable for inspecting?
The gauge is intended to inspect external UNC threads on components regardless of base material; the hardened gauge steel construction ensures the ring remains accurate when used across multiple part batches.

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