1/2" x 28 UNEF Thread Go Gauge, Right-Hand, Hardened Gauge Steel, ANSI/ASME B1.1 2B - Metav IndustryLine

Take advantage of precise go/no-go verification, conformity to ANSI/ASME B1.1, and durable hardened gauge steel for reliable in‑line inspection and acceptance testing. Order the gauge directly via Metav Werkzeuge or consult the technical team for application advice.

Thread plug gauge UNEF, 1/2" x 28 (ANSI/ASME B1.1) — 2B tolerance

A Thread plug gauge UNEF, 1/2" x 28 (2B) designed for fast verification of internal thread conformity in production, quality control and inspection workflows

• ANSI/ASME B1.1 compliant
• Hardened gauge steel construction
• Right-hand thread, 2B tolerance

Conformity checks that keep production moving

The plug gauge is engineered for straightforward, repeatable inspection of internal threads according to ANSI/ASME B1.1, providing a clear accept/reject result that reduces time-consuming rework. The 1/2" x 28 TPI geometry with 2B tolerance corresponds to standard UNC/UNEF internal thread practice, making the gauge suitable for batch testing and incoming inspection. By giving immediate verification, the tool supports efficient process control and helps maintain throughput on assembly lines.

Durability and dimensional stability for frequent use

Manufactured from hardened gauge steel, the gauge resists wear from repeated engagement and preserves dimensional stability over many cycles. The right-hand thread geometry and robust finishing mean surface integrity is maintained, reducing the need for frequent replacement. The compact, well-balanced form allows quick handling on the shop floor and accurate tactile feedback during go/no-go checks, so inspection teams can work with confidence and minimal downtime.

Practical fit for workshops and quality labs

Built for everyday use in machine shops, inspection benches and tool rooms, this plug gauge combines clear standard compliance with pragmatic workshop resilience. As part of the Metav IndustryLine, the item benefits from a supply chain and quality filter based in Emmerich that serves over 48,000 customers and a broad portfolio of precision products. The result is accessible precision: a reliable gauge for both small repair shops and larger production facilities that need consistent thread verification without compromise.

For a tailored recommendation from Metav IndustryLine and to place an order, contact Metav Werkzeuge for technical advice and procurement at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: M315.924.EF
• GTIN: 4054469179629
• Manufacturer: Metav IndustryLine

Core specifications

• Thread size: 1/2" x 28 TPI
• Pitch: 28 TPI
• Tolerance class: 2B
• Weight: 0.2 kg

Features / Standards

• Right-hand thread
• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Customs tariff number: 90173000

FAQ

What thread form and size does this gauge check?
The gauge checks a UNEF internal thread sized 1/2" x 28 TPI, manufactured to the 2B tolerance class in accordance with ANSI/ASME B1.1.

Is the gauge suitable for production line testing?
Yes, the Thread plug gauge UNEF, 1/2" x 28 (2B) from Metav IndustryLine is intended for fast go/no-go checks in production and quality control environments.

What material is the gauge made from?
The gauge is made of hardened gauge steel, chosen for wear resistance and long-term dimensional stability during repeated inspections.

Does the gauge indicate handedness or thread direction?
The tool is supplied with a right-hand thread configuration, appropriate for standard right-hand internal threads.

How is conformity to standards ensured?
Conformity is provided by design and manufacture to ANSI/ASME B1.1/B1.2, ensuring the gauge matches commonly accepted thread forms and tolerances.

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