No. 12 x 28 UNF Thread Plug Gauge Right-Hand, ANSI B1.1/B1.2, Class 2B - Metav IndustryLine

Take advantage of a standards‑compliant inspection tool that combines ANSI/ASME B1.1 conformity, hardened gauge steel construction and a clear 2B tolerance for reliable thread verification — order directly via Metav Werkzeuge or consult the Metav team for application advice.

Thread plug gauge UNF No. 12 × 28 ANSI B1.1 / 2B — hardened gauge steel, right-hand thread

Thread plug gauge UNF No. 12 × 28 ANSI B1.1 / 2B is designed for fast, repeatable verification of internal UNF threads in production and quality control environments.

• ANSI/ASME B1.1 compliant
• Hardened gauge steel construction
• UNF No. 12 × 28 right-hand thread
• Tolerance class 2B for internal threads

Accurate inspection where standards matter

A precision thread plug gauge built to ANSI/ASME B1.1 tolerancing provides a direct, unequivocal measure of internal thread conformity. The gauge’s 2B tolerance corresponds to the accepted class of fit for internal threads and therefore serves as a reliable go/no‑go reference during incoming inspection, in‑process checks and final quality control. By using a dedicated master gauge rather than ad hoc measurement methods, inspection throughput increases and the risk of undetected non‑conformances is reduced.

Durable design for consistent repeatability

Manufactured from hardened gauge steel, this plug gauge resists wear and maintains dimensional stability across repeated use, which preserves measurement integrity and lowers long‑term replacement costs. The right‑hand No. 12 × 28 UNF geometry matches common imperial fastener specifications and enables quick verification without complex setup. The compact mass and robust construction support frequent handling on the shop floor while keeping thread profiles true to the master standard.

Practical benefits for workshop and production workflows

Using a purpose‑made plug gauge simplifies decision‑making on the shop floor: pass or fail is immediately evident, reducing inspection time and limiting rework. The item’s conformity to established standards supports traceability and audit readiness, while the compact form factor keeps storage and handling straightforward. For procurement and inventory control, the clear identification (including part code M315.919.F) streamlines order replenishment and documentation.

For assured compliance and practical inspection solutions, contact Metav Werkzeuge in Emmerich to discuss specifications, availability and tailored advice for integrating this gauge into production workflows.

Technical data

• Article number: M315.919.F
• GTIN: 4054469179506
• Designation: Thread plug gauge UNF No. 12 × 28 / 2B
• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Tolerance class: 2B
• Thread direction: Right-hand
• Mass: 0.1 kg

Facts

• Threads per inch: 28 tpi
• Size designation: No. 12
• Weight: 0.1 kg
• GTIN: 4054469179506

Special features

• Right-hand UNF thread form
• Hardened gauge steel for wear resistance
• Designed for internal thread inspection
• Categories: pin gauges; inspection gauges
• SKU: M315.919.F

FAQ

What does the 2B tolerance indicate for internal threads?
The 2B tolerance denotes the standard internal thread class of fit under ANSI/ASME B1.1; the plug gauge checks that the internal thread conforms to that allowable size and form.

Is this gauge suitable for workshop use on production lines?
Yes — the gauge’s hardened gauge steel construction and its No. 12 × 28 UNF profile make it suitable for routine production and incoming inspection use where quick go/no‑go decisions are required.

How is the thread direction specified?
This plug gauge is manufactured with a right‑hand thread to match standard right‑hand UNF fasteners.

Which standard does this gauge follow and why is that important?
The gauge conforms to ANSI/ASME B1.1/B1.2, ensuring compatibility with common imperial thread specifications and supporting consistent inspection criteria across suppliers and customers.

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