1 3/8" UNC Thread Go Gauge 6 TPI ANSI B1.1/B1.2, Hardened Plug Gauge 2B - Metav IndustryLine

Combining ANSI/ASME B1.1 compliance, hardened gauge steel construction and a precise 2B tolerance, this thread plug gauge delivers dependable internal-thread verification for production and inspection tasks; order the thread plug gauge directly via Metav Werkzeuge or ask our consultants if needed.

Thread plug gauge UNC 1 3/8" x 6 TPI – 2B tolerance (Metav IndustryLine)

The Thread plug gauge UNC 1 3/8" x 6 TPI is a hardened gauge-steel inspection mandrel for quick, repeatable verification of internal UNC threads to ANSI/ASME B1.1 standards in workshop and production environments.

• Hardened gauge steel construction
• ANSI/ASME B1.1 compliant inspection tool
• Tolerance class 2B for internal threads
• Size 1 3/8" with 6 TPI pitch

Ensure process reliability with standardised thread checks

With a focus on repeatable measurement and process control, this plug gauge supports consistent acceptance testing of internal threads. The hardened construction and adherence to ANSI/ASME B1.1 mean that dimensional checks align with commonly used North American standards, simplifying conformity documentation and supplier communication. The specified 2B tolerance denotes the standard internal-thread allowance for general-purpose assemblies; checking to this class ensures parts fit correctly without overcommitment to unnecessarily tight tolerances. Using a purpose-built inspection mandrel reduces ambiguity in go/no-go decisions and shortens inspection cycles, improving throughput in routine quality checks.

Robust design that withstands workshop use

Manufactured from hardened gauge steel, the inspection mandrel resists wear and maintains the reference form of the thread profile over repeated use, which reduces measurement drift and the need for frequent replacement. The nominal size of 1 3/8" combined with a 6 TPI pitch matches common UNC specifications encountered in heavy fittings and fastener assemblies. The result is a practical longevity advantage: fewer interruptions for tool changes and less rework caused by worn gauges. For operations where consistency across batches is decisive, the durable material choice contributes directly to lower lifetime cost and greater confidence in in-process decisions.

Straightforward integration into inspection workflows

Designed for direct use at incoming inspection benches or final assembly stations, this gauge is compact, immediately recognisable and quick to apply. The tool’s clear conformity to standard thread geometry makes training straightforward for workshop staff and supports efficient inspection documentation. When a traceable reference is required, pairing this inspection mandrel with Metav’s procurement and advisory services ensures alignment with established quality systems and simplifies purchasing for maintenance spares. The tool is therefore well suited to machinists, quality engineers and maintenance teams seeking a pragmatic balance between precision and operational ease.

Contact Metav Werkzeuge for advice on integrating the Metav IndustryLine thread plug gauge 1 3/8" x 6 TPI into existing inspection routines or to request delivery from Emmerich.

Technical Data

• Article number: M315.934
• GTIN: 4054469179872
• Description: Thread plug gauge UNC 1 3/8" x 6 TPI, ANSI/ASME B1.1 / 2B

Facts

• Weight: 0.6 kg
• Size: 1 3/8 in
• Pitch: 6 TPI
• Tariff code: 90173000

Special features

• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1 / B1.2
• Tolerance class: 2B
• Application: internal thread inspection
• Category: Gauges, Measuring pins

FAQ

What thread size and pitch does this gauge check?
The thread plug gauge checks a UNC internal thread sized at 1 3/8" with a 6 TPI pitch, matching the ANSI/ASME B1.1 specification listed for the item.

Which tolerance class is verified by the gauge?
This inspection mandrel is produced for tolerance class 2B, meaning it verifies standard internal-thread allowance commonly used for general-purpose assemblies.

Is the gauge suitable for production inspection to ANSI standards?
Yes. The tool is manufactured to conform with ANSI/ASME B1.1, making it suitable for production and incoming inspection where standard-compliant thread verification is required.

Who supplies this gauge and where is it shipped from?
The item is part of the Metav IndustryLine range and is supplied via Metav Werkzeuge; the SKU is M315.934 and the product is distributed from Emmerich for European workshop and industrial customers.

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