1 1/4" Thread Plug Gauge UNF 12 TPI Right-Hand ANSI B1.1/B1.2, Hardened Gauge Steel - Metav IndustryLine

With its combination of hardened gauge steel construction and conformity to ANSI/ASME B1.1/B1.2, this thread plug gauge ensures repeatable verification of internal UNF threads. The 2B tolerance and 1 1/4" x 12 tpi sizing make it suitable for both production control and incoming inspection. Order via Metav Werkzeuge or contact our consultants for specification support.

Thread plug gauge UNF, 1 1/4 x 12 ANSI B1.1 / 2B — hardened gauge steel, right-hand thread (Metav IndustryLine)

The Thread plug gauge UNF, 1 1/4 x 12 ANSI B1.1 / 2B is a hardened internal-thread gauge designed for precise verification of UNF threads to ANSI/ASME tolerances in workshop and quality-control environments

• ANSI/ASME B1.1/B1.2 conformity
• Hardened gauge steel construction
• Right-hand thread design
• Tolerance class 2B for internal threads

Engineered for reproducible thread verification

Built to match industry standards, the plug verifies internal UNF threads with a clear specification: 1 1/4" x 12 tpi and 2B tolerance per ANSI/ASME B1.1/B1.2. This makes the instrument suitable for repeatable pass/fail checks during production sampling and incoming inspections, reducing ambiguity at the control stage. The defined thread form and pitch ensure that measurements relate directly to commonly used UNF components and fasteners, simplifying documentation and audit trails in regulated processes.

Robust material and workshop handling

Manufactured from hardened gauge steel, the gauge resists wear during repetitive use while retaining dimensional stability. The compact mass of approximately 0.6 kg provides a comfortable balance between sturdiness and manoeuvrability at the inspection bench. A right-hand thread orientation matches standard UNF parts, avoiding adaptation steps in everyday checking routines. The material choice and heat treatment together extend service life and preserve gaugeability under typical shop conditions, lowering total cost of ownership through reduced replacement frequency.

Practical fit in quality workflows

As a dedicated internal-thread verifier, the plug integrates easily into workshop routines and quality-control sequences. Marking the go/no-go outcome is straightforward because the gauge is produced to the ANSI/ASME norms commonly cited in technical drawings and specifications. Using a standardised gauge removes subjective judgment from the inspection step and speeds throughput in serial production. For traceability, record the gauge identification (SKU M315.932.F) alongside inspection results to maintain a clear audit trail for batch releases and supplier checks.

Reliability through a specialist partner

Choosing a Metav IndustryLine instrument aligns the tool with a supplier that emphasises accessible precision and reliable delivery. Metav’s offering is backed by decades of distribution experience and a broad product range, which supports consistent replenishment and tool matching across workshops. This combination of durable construction and established distribution channels helps to lower operational risk, ensuring that measurement capability remains available when needed and that replacement items conform to the same specifications.

Contact Metav Werkzeuge for specification confirmation and supply from Emmerich—call +49 2822 7131930 or e‑mail info@metav-werkzeuge.com

Technical data

• Article number: M315.932.F
• GTIN: 4054469179858
• SKU: M315.932.F
• Weight: 0.6 kg
• Material: hardened gauge steel
• Norm: ANSI/ASME B1.1/B1.2

Core specifications

• Size: 1 1/4"
• Pitch: 12 tpi
• Tolerance class: 2B
• Thread direction: right-hand

Standards & features

• ANSI/ASME B1.1/B1.2 compliance
• Right-hand UNF thread
• Category: Gauges / plug gauges
• Customs tariff number: 90173000

FAQ

What thread size and pitch does this gauge check? The Thread plug gauge UNF, 1 1/4 x 12 ANSI B1.1 / 2B checks internal UNF threads with a nominal size of 1 1/4" and a pitch of 12 threads per inch; the item is listed as SKU M315.932.F from Metav IndustryLine.

Which tolerance class applies to this gauge? This plug gauge is produced to tolerance class 2B, which corresponds to the standard internal-thread tolerance for general-purpose UNF assemblies under ANSI/ASME B1.1.

What material is the gauge made from and why does that matter? The gauge is made from hardened gauge steel; this material and heat treatment maintain dimensional stability and wear resistance, ensuring long-term reliability for routine inspection tasks.

To which standards does the gauge conform? Conformity is to ANSI/ASME B1.1/B1.2, the common reference for UNF thread forms and tolerances used in engineering drawings and inspection plans.

How should the gauge be recorded in inspection documentation? Record the tool by its designation and SKU (Thread plug gauge UNF, 1 1/4 x 12 ANSI B1.1 / 2B, M315.932.F) and note the inspection result alongside lot or batch data to preserve traceability in quality records.

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