3/4" 20 TPI UNEF Thread Go Gauge Right-Hand Hardened Gauge Steel ANSI/ASME B1.1 2B - Metav IndustryLine

Take advantage of robust, standards-compliant inspection with a hardened gauge that delivers repeatable pass/fail checks for UNEF internal threads; the 3/4" x 20 size and 2B tolerance combine to cover common workshop and inspection tasks reliably. Order the gauge directly via Metav Werkzeuge or contact the sales team for application advice.

Thread plug gauge UNEF 3/4 x 20 (ANSI/ASME B1.1) – 2B, right-hand (Metav IndustryLine)

A thread plug gauge UNEF 3/4 x 20 (2B) for quick, unambiguous verification of internal threads to ANSI/ASME standards in workshop and inspection environments.

• ANSI/ASME B1.1 compliant for UNEF threads
• Hardened gauge steel for long service life
• Right-hand thread, 3/4" x 20 UN extra fine
• Tolerance class 2B for internal thread checks

Precise go/no‑go checking that reduces rework

The primary advantage of this threaded gauge is the consistent, measurable verification it provides for internal threads manufactured to the UNEF series. Engineered for quick pass/fail assessment, the plug ensures that internal threads meet the 2B tolerance and the dimensional demands of ANSI/ASME B1.1, reducing the time spent on manual assessment and lowering the risk of rejects. The clear limit criteria mean fewer subjective judgements on the shop floor and a faster quality-control cycle for small-batch and series production alike.

Durable construction for repeated inspection cycles

Made from hardened gauge steel, this plug offers high wear resistance and stable geometry even under frequent use. The robust material plus careful hardening yields long-term dimensional stability, which translates into fewer replacements and predictable inspection intervals. Where traceability and repeatability matter, a hardened plug minimises the influence of handling and provides repeatable tactile feedback during checking, helping inspection technicians make confident decisions without complex measuring setups.

Standards conformity and workshop compatibility

Designed to the ANSI/ASME B1.1/B1.2 thread form and supplied in the common 3/4" x 20 specification, the gauge integrates seamlessly into existing inspection routines and documentation. The right-hand orientation matches standard production threading and the 2B tolerance suits typical internal-thread requirements in general engineering and maintenance tasks. The compact, single-purpose nature of the tool keeps the verification step simple and directly comparable to drawing requirements or incoming inspection criteria.

Practical benefits for procurement and quality managers

Adopting this plug gauge streamlines incoming inspection and in‑process checks by supplying an unambiguous go/no-go reference. The lightweight construction (approximately 0.3 kg) makes the gauge easy to handle and store, while the standard SKU and GTIN support inventory control and traceability. For operations seeking a pragmatic way to improve first-time-right rates, this gauge offers a direct, cost-effective route to more reliable thread production without complex measuring equipment.

Contact Metav Werkzeuge for application guidance and to secure the Metav IndustryLine thread plug gauge for your inspection equipment.

Technical data

• SKU: M315.927.EF
• GTIN: 4054469179711
• Weight: 0.3 kg

Facts

• Size: 3/4"
• Pitch: 20 tpi
• Tolerance class: 2B
• Standard: ANSI/ASME B1.1/B1.2

Special features

• Material: gauge steel, hardened
• Thread direction: right-hand
• Category: gauges, plug gauges
• Intended use: internal thread verification

FAQ

What is this gauge used for? The thread plug gauge UNEF 3/4 x 20 (2B) is used for quick go/no‑go verification of internal UNEF threads to confirm conformity with drawing and standard specifications.

Does the gauge conform to recognised standards? Yes, the plug gauge was produced for conformity with ANSI/ASME B1.1/B1.2, ensuring compatibility with common North American thread specifications.

What material is the gauge made from and why does it matter? The gauge is made from hardened gauge steel, chosen for wear resistance and dimensional stability so that the plug maintains accuracy over many inspection cycles.

Is the gauge suitable for production use on the shop floor? The plug gauge’s robust construction and clear pass/fail function make it suitable for regular shop-floor checks and in‑process control of threaded bores.

How is thread direction indicated? This version is manufactured with a right-hand thread to match standard production threading practices.

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