No. 5 40 TPI UNC Go Thread Ring Gauge 2A, Hardened Gauge Steel ANSI B1.1/B1.2 - Metav IndustryLine

Take advantage of the combination of hardened gauge steel, ANSI/ASME compliance and compact No. 5 sizing for reliable, repeatable external thread inspection; order the gauge directly via Metav Werkzeuge or ask our consultants if needed

Go thread ring gauge UNC No. 5 x 40, ANSI/ASME B1.1 – 2A (Metav IndustryLine)

A Go thread ring gauge UNC No. 5 x 40 for rapid verification of external UNC threads in production and quality inspection

• Hardened gauge steel construction
• ANSI/ASME B1.1/B1.2 compliant
• Tolerance class 2A for UNC threads
• Compact No. 5 size, 40 TPI

Reliable, standards-based inspection for production control

The Go ring gauge is designed to offer a fast, reproducible check of external UNC threads in line with ANSI/ASME B1.1/B1.2. Its tolerance class 2A ensures that accepted parts meet the intended fit class for external threads, which reduces the risk of assembly issues further down the value chain. Using a dedicated gauge for pass/fail checks shortens inspection cycles and supports consistent quality control across batches, making the device an efficient tool for shop-floor process control.

Durable construction that suits everyday workshop use

Manufactured from hardened gauge steel, the instrument resists wear during repetitive checking and maintains dimensional integrity over many cycles. The compact No. 5 format with 40 threads per inch (TPI) balances accessibility and stiffness, allowing quick handling without sacrificing repeatability. Its modest mass supports straightforward manual operation and contributes to faster throughput when many external threads must be verified, helping to keep production moving with fewer interruptions.

Clear conformity and traceability for quality documentation

Compliance with ANSI/ASME B1.1/B1.2 provides an unambiguous reference point for procurement and inspection protocols, which simplifies documentation and acceptance criteria in supplier chains. As a purpose-made Go gauge, the component fits into established metrology routines and supports standardised inspection records. The presence of a manufacturer SKU and GTIN facilitates inventory control and traceability within quality management systems, aligning measurement practice with administrative requirements.

Practical application and compatibility with thread inspection workflows

The gauge is suitable for on‑bench verification of externally threaded parts manufactured to UNC standards, such as fasteners and turned components finished to imperial thread specifications. Employed as part of a go/no‑go inspection step, the ring gauge speeds decisions and complements detailed dimensional methods where required. Its design supports quick tactile verification, enabling operators to maintain throughput while ensuring that external threads conform to the defined thread form and lead requirements.

For dependable UNC thread verification choose the Metav IndustryLine Go ring gauge — contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or +49 2822 7131930 for technical advice and reliable supply

Technical data

• Article number: M315.945
• GTIN: 4054469180045
• Label: Go thread ring gauge UNC No. 5 x 40, ANSI B1.1 / 2A
• Material: Hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2

Facts

• Size: No. 5
• Threads: 40 TPI (threads per inch)
• Tolerance class: 2A
• Weight: 0.1 kg
• Tariff number: 90173000

Special features

• Go ring gauge for external UNC threads
• Compliance with ANSI/ASME thread standards
• Hardened construction for wear resistance
• Category: Gauges / Thread gauges
• SKU: M315.945

FAQ

What does this gauge check?
The Go thread ring gauge checks external UNC threads to confirm conformance with the specified thread form and acceptance criteria under ANSI/ASME B1.1/B1.2.

Which tolerance and class does it represent?
This instrument is manufactured to tolerance class 2A, providing the acceptance limit for external threads intended to mate with internal 2B (or equivalent) class threads.

What does No. 5 x 40 mean?
No. 5 denotes the nominal UNC size and 40 indicates 40 threads per inch (TPI); together they define the thread geometry that the gauge verifies.

What material is the gauge made from?
The gauge is produced from hardened gauge steel, chosen for dimensional stability and resistance to wear during repeated inspection cycles.

How is the product identified for ordering and inventory?
Reference the SKU M315.945 and GTIN 4054469180045 when ordering or recording the item in inventory systems.

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