1 3/8" UNEF Thread Go/No-Go Plug Gauge 18 TPI, Right-Hand, Hardened Gauge Steel - Metav IndustryLine

Take advantage of precise thread verification and rugged construction to reduce scrap and rework while maintaining production flow; the hardened gauge steel and class 2B acceptance notably simplify in‑line inspections. Order the UNEF thread plug gauge directly via Metav Werkzeuge or ask our consultants for tailored advice.

UNEF thread plug gauge — 1 3/8" × 18 tpi, ANSI/ASME B1.1, class 2B (Metav IndustryLine)

UNEF thread plug gauge — 1 3/8" × 18 tpi is a go/no‑go verification mandrel for right‑hand internal threads, designed for workshop and shop‑floor measurement.

• UNEF thread, 1 3/8" × 18 tpi
• Hardened gauge steel construction
• ANSI/ASME B1.1 standard compliance
• Tolerance class 2B assurance

Assured fit through standardised verification

A dedicated thread plug gauge provides the fastest, most reliable way to confirm internal thread conformity. The supplied item conforms to ANSI/ASME B1.1, so acceptance or rejection decisions follow an established reference rather than subjective assessment. With the nominal size 1 3/8" × 18 tpi and class 2B tolerance, the gauge is optimised for standard machine‑thread fits common in assembly and repair operations. The hardened construction minimises wear, which preserves the gauge geometry and keeps pass/fail thresholds consistent over many cycles — a direct benefit to throughput and first‑time quality.

Robust design for repeated shop use

Manufactured from hardened gauge steel, the mandrel is built to resist abrasion and retain form even under frequent handling. The right‑hand thread orientation matches typical production parts and avoids misinterpretation during rapid checks. Using a physical gauge like this reduces inspection time compared with measuring threads by instrument and lowers the probability of operator error when verifying mating parts. The compact, easy‑to‑handle format supports fast manual checks at the bench or in the assembly line, helping teams keep components moving without compromising traceability.

Traceable standards and practical application

The instrument serves as a direct, standards‑based control for internal thread acceptance: a go fit indicates compliance with the class 2B boundary while the no‑go ensures the envelope is not exceeded. This clear binary result simplifies documentation and SPC input, aiding quality departments in reducing corrective actions. The gauge's compliance with ANSI/ASME B1.1 also means auditability is straightforward; inspection records referencing this reference artefact integrate cleanly into formal quality systems. The product listed as M315.934.EF supports fast identification in procurement and stores.

Contact Metav Werkzeuge for expert guidance on integrating this Metav IndustryLine UNEF thread plug gauge into inspection procedures and to arrange supply for your quality-controlled production

Technical data

• Article number: M315.934.EF
• GTIN: 4054469179889
• Weight: 0.6 kg
• Size: 1 3/8"
• Pitch: 18 tpi
• Tolerance class: 2B
• Standard: ANSI/ASME B1.1/B1.2

Facts

• Material: hardened gauge steel
• Thread direction: right‑hand
• Type: UNEF internal thread verification mandrel
• Category: thread gauges / inspection tools

Special features

• Hardened construction for wear resistance
• Designed for pass/no‑go verification
• Suitable for workshop and assembly‑line checks
• SKU: M315.934.EF

FAQ

What does class 2B mean for internal threads? Class 2B refers to the internal thread tolerance band; the UNEF thread plug gauge checks that internal threads meet the class 2B acceptance limits for a standard fit.

Can this gauge be used for both production and final inspection? Yes, the UNEF thread plug gauge is suitable for quick production checks and final acceptance where ANSI/ASME B1.1 conformity is required.

What does the go/no‑go result indicate? A go result means the internal thread meets the minimum assembly allowance for 1 3/8" × 18 tpi class 2B; a no‑go flags threads that exceed the permitted major diameter or form deviations.

Is the material resistant to wear during frequent use? The gauge is made from hardened gauge steel, providing wear resistance that preserves the verification geometry over repeated checks.

How is the item identified in the Metav range? The gauge is listed under SKU M315.934.EF as part of the Metav IndustryLine inspection tools and is intended for UNEF thread verification

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