1 1/8" 12 TPI UNF Thread Go Ring Gauge Right-Hand Hardened Gauge Steel ANSI B1.1 2A - Metav IndustryLine

Consistent thread verification is delivered through strict ANSI/ASME B1.1 compliance, hardened gauge steel construction and a clear 2A tolerance class — order the UNF GO thread ring gauge directly via Metav Werkzeuge or ask our consultants if needed.

UNF GO Thread Ring Gauge 1 1/8" × 12, ANSI/ASME B1.1, 2A – Metav IndustryLine

A UNF GO thread ring gauge 1 1/8" × 12 2A designed for fast, repeatable verification of external UNF threads to ANSI/ASME B1.1 tolerances.

• ANSI/ASME B1.1/B1.2 compliance
• Hardened gauge steel construction
• UNF 1 1/8" × 12, tolerance class 2A

Reliable checking for production control

The GO ring gauge provides a straightforward, binary check that confirms whether an external UNF thread falls within specified limits. Built to the ANSI/ASME B1.1 standard, the gauge removes ambiguity from routine inspections and speeds up acceptance decisions at the workstation. By substituting subjective visual checks with a standardised master, process variability is reduced and throughput is improved without additional instrumentation.

Clear tolerancing for quality assurance

Tolerance class 2A denotes the dimensional limits for a standard external thread; using a purpose-made ring gauge with a 12 TPI pitch ensures direct compatibility with UNF thread forms. This mechanical go/no-go approach streamlines quality control by separating conforming parts from non-conforming ones quickly, which lowers scrap rates and helps maintain consistent assembly fits. The simple pass/fail check supports statistical process control and documentation workflows.

Durable design that withstands shop use

Manufactured from hardened gauge steel, the ring gauge resists wear and preserves the gauging form over extended use, so calibration intervals are extended and replacement costs reduced. The right-hand thread configuration matches common production orientations, and the compact, balanced mass ensures comfortable handling during repeated checks. Robust construction reduces downtime and aids reliable part inspection across serial production runs.

Integrates with inspection routines and supply chains

As a plain‑language master for UNF external threads, the gauge fits existing inspection benches and works alongside torque and assembly checks to guarantee functional fits. The product is provided under the Metav IndustryLine range and is suitable for machine shops, inspection departments and production lines that require repeatable, standardised thread verification. Traceable identification via the SKU simplifies inventory and audit records.

For dependable, standards‑based thread gauging from the Metav IndustryLine, contact Metav Werkzeuge for application advice and tailored supply of the M315.961.F ring gauge.

Technical Data

• Article number: M315.961.F
• GTIN: 4054469180465
• Label: Gewinde-Lehrring UNF GO, 1 1/8 x 12 ANSI B1.1 / 2A

Facts

• Pitch: 12
• Tolerance class: 2A
• Weight: 0.6 kg
• Size: 1 1/8"
• Standard: ANSI/ASME B1.1/B1.2

Special features

• Material: hardened gauge steel
• Right-hand thread
• Type: GO ring gauge for UNF external threads
• SKU: M315.961.F

FAQ

What is the primary purpose of this ring gauge?
The UNF GO thread ring gauge 1 1/8" × 12 (M315.961.F) is used to verify whether external UNF threads meet the required dimensional limits defined by ANSI/ASME B1.1; it provides a clear go/no‑go result for production checks.

What does tolerance class 2A mean for external threads?
Tolerance class 2A specifies the permissible deviation band for standard external threads; the ring gauge marked 2A confirms that threads fall within those limits for proper fit with mating parts.

Is this gauge suitable for heavy shop use?
Yes, the gauge is made from hardened gauge steel which provides wear resistance and longevity in routine inspection tasks typical of machine shops and quality departments.

Does the gauge work for right-hand threads only?
This particular model is manufactured with a right-hand thread profile to match conventional UNF external threads; left-hand threads require a different gauge configuration.

How does the GO ring gauge improve inspection speed?
By offering a binary pass/fail check against the ANSI/ASME form, the gauge removes subjective assessment, accelerates decision-making at the line and supports consistent quality documentation.

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