3/8" 16 UNC Thread Go/No-Go Plug Gauge, Hardened Gauge Steel, ANSI B1.1/B1.2, 2B - Metav IndustryLine

Combining hardened gauge steel construction with precise ANSI/ASME B1.1 2B tolerancing, this plug gauge delivers fast, repeatable verification of UNC internal threads while resisting workshop wear. Order the thread plug gauge UNC 3/8 x 16 directly via Metav Werkzeuge or ask our consultants if needed.

Thread plug gauge UNC 3/8-16, 2B — Hardened gauge steel, ANSI/ASME B1.1 | Metav IndustryLine

A thread plug gauge UNC 3/8-16 designed for rapid go/no-go checks of internal threads to established international standards, ideal for machine shops and quality departments

• Hardened gauge steel construction
• Conforms to ANSI/ASME B1.1 standard
• Tolerance class 2B for internal threads

Fast, reliable verification for workshop quality control

The plug gauge follows the go/no-go principle to provide immediate pass/fail results for internal threads, cutting down inspection time and limiting rework. Manufactured to fit the UNC 3/8-16 form, the gauge offers a clear, repeatable check against the declared thread profile and pitch (16 tpi). By using a dedicated gauge instead of lengthy measurement chains, inspection cycles become more efficient and throughput is increased without compromising on repeatability or standard conformity.

Robust construction that withstands regular use

Made from hardened gauge steel, the gauge is prepared for routine handling in production and inspection environments. The material selection and heat treatment deliver wear resistance and dimensional stability so that the calibrated limits remain reliable over many cycles. The compact, balanced design supports quick handling and positioning, enabling technicians to perform frequent checks with minimal effort while maintaining traceable results for critical internal threads.

Standards compliance and integration into inspection routines

Conforming to ANSI/ASME B1.1/B1.2 and specified as tolerance 2B, the gauge is suitable for standard UNC internal-thread acceptance. This compliance simplifies documentation for incoming inspection and final quality control and supports consistent decision-making on part acceptance. For workshop and toolroom applications, the device integrates easily into jigs and fixtures or manual inspection benches, providing a pragmatic solution where rapid verification matters more than complex measurement setups.

Practical benefits for production and quality teams

Using a purpose-made plug gauge reduces operator interpretation during thread checks and accelerates sampling plans. The simple go/no-go approach aids process control and supports a culture of clear acceptance criteria on the shop floor. As a compact inspection tool, it is particularly useful where fast cycle times and unambiguous results contribute directly to throughput and product reliability.

For supply and technical advice on Metav IndustryLine inspection tools, contact Metav Werkzeuge in Emmerich for delivery options and workshop-tailored recommendations

Technical data

• Article number: M315.922
• GTIN: 4054469179568
• Tariff number: 90173000

Facts

• Nominal size: 3/8"
• Pitch: 16 tpi
• Tolerance class: 2B
• Weight: 0.1 kg

Special features

• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Category: Thread plug gauge
• Manufacturer: Metav IndustryLine

FAQ

What does tolerance class 2B indicate for internal threads?
Tolerance class 2B denotes the common internal-thread tolerance grade under the ANSI/ASME system, ensuring that the internal profile of threads checked with this plug gauge meets the defined acceptance limits for fit and function.

Which standard governs the thread form and dimensions verified by this gauge?
The gauge is produced to ANSI/ASME B1.1/B1.2, the accepted standard for Unified threads, so inspections reflect the dimensional and form requirements defined in those documents.

Is this plug gauge suitable for routine shop-floor checks of UNC parts?
Yes; the design and hardened gauge steel construction make the gauge appropriate for regular go/no-go verification of UNC 3/8-16 internal threads in production and maintenance environments.

How is the thread pitch specified on the gauge?
The pitch is given as 16 tpi (threads per inch), matching the UNC 3/8-16 designation used for the nominal size and ensuring correct mating form checks.

Can this gauge be used as part of a documented quality control workflow?
Yes; the gauge provides unambiguous pass/fail results consistent with ANSI/ASME acceptance criteria and can be incorporated into sampling plans and inspection records for traceable quality assurance.

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