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

Take advantage of a hardened gauge steel construction combined with strict ANSI/ASME B1.1/B1.2 conformity and a 2B tolerance to ensure reliable verification of internal UNF threads; order the plug gauge directly via Metav Werkzeuge or contact our consultants for application advice.

UNF Thread Plug Gauge 1 1/2" × 12 – Metav IndustryLine (Tolerance 2B, hardened gauge steel)

a UNF Thread Plug Gauge 1 1/2" × 12 for precise verification of internal threads to ANSI/ASME B1.1, designed for workshop and inspection use

• Hardened gauge steel construction
• ANSI/ASME B1.1/B1.2 conforming
• Tolerance class 2B for internal threads
• Right-hand UNF 1.5" × 12 thread

Accurate verification for UNF internal threads with minimal rework

The UNF Thread Plug Gauge 1 1/2" × 12 serves as a concise pass/fail control for internal threads, cutting inspection time and reducing scrap. With a 12 TPI thread form and tolerance class 2B, the gauge confirms thread geometry and fit according to the ANSI/ASME B1.1 specification, enabling quick decisions on component acceptability. By standardising the verification step, workshop quality checks become repeatable and transparent, supporting faster process control and fewer production interruptions.

Robust construction for frequent use and long service life

Manufactured from hardened gauge steel, the plug gauge resists wear in high‑use inspection environments and preserves the reference form over many cycles. The material choice and heat treatment ensure dimensional stability and resistance to corrosion in normal workshop conditions; periodic cleaning and protective storage prolong service life. The compact, solid design gives a reliable tactile feel at the seating point, which helps inspectors detect marginal fits without complex measurement equipment.

Conformity and traceability that support quality systems

Compliance with ANSI/ASME B1.1/B1.2 and the clear marking of 2B tolerance class simplify documentation for incoming inspection and production control. Integration of the gauge into inspection plans provides objective evidence for quality audits and helps maintain consistent assembly performance. The tool is suitable for routine shop-floor checks where a definitive go/no‑go decision streamlines downstream operations and reduces rework cycles.

Practical workshop integration and handling notes

The right‑hand UNF 1.5" × 12 geometry makes this gauge immediately applicable for American‑standard thread forms commonly found in heavy‑duty fittings and assemblies. The unit’s moderate mass supports controlled insertion and removal during checks; normal practice recommends cleaning threads before use and storing the gauge in a dry environment to keep the reference form intact. Where extended traceability is required, include the gauge identity and inspection results in the production record to support continuous quality improvement.

Contact Metav Werkzeuge for application advice and to secure the hardened Metav IndustryLine UNF thread plug gauge (SKU M315.935.F), available for prompt dispatch from Emmerich.

Technical data

• Article number: M315.935.F
• GTIN: 4054469179926
• Label: Gewinde-Lehrdorn UNF, 1.1/2 x 12 ANSI B1.1 / 2B
• Manufacturer: Metav IndustryLine

Facts

• Size: 1 1/2" × 12 TPI
• Pitch: 12 TPI
• Weight: 0.8 kg
• Tariff number: 90173000

Special features

• Material: gauge steel, hardened
• Right-hand thread
• Tolerance class: 2B
• Standard: ANSI/ASME B1.1/B1.2
• Categories: Gauges; Measuring pins

FAQ

What is this gauge used for?
The UNF Thread Plug Gauge 1 1/2" × 12 is used to verify internal UNF threads for conformity to ANSI/ASME B1.1 and to provide a clear go/no‑go result for assembly acceptance.

What does tolerance class 2B mean for inspection?
Tolerance class 2B denotes the standard internal‑thread tolerance in the ANSI/ASME system; the gauge confirms that the internal thread meets the dimensional allowance and fit expectations.

Which materials is the gauge suitable for when inspecting threads?
The plug gauge is a verification tool and may be used to inspect threads produced in steel, aluminium and other common construction materials; the gauge itself is made from hardened gauge steel for durability.

How should the gauge be cared for to retain accuracy?
Clean thread flanks before and after use, store the gauge dry and protected, and avoid impacts; routine visual checks preserve the reference form and support reliable inspections.

Can this gauge be used for external threads?
This plug gauge is designed for internal thread verification; external threads require the corresponding plug/gauge type or a thread ring gauge for a definitive assessment.

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