No. 1 x 64 UNC Thread Ring Gauge GO, 2A, Hardened Gauge Steel ANSI/ASME B1.1 - Metav IndustryLine

Take precision control on the shop floor with a hardened GO ring gauge that conforms to recognised standards; the combination of ANSI/ASME B1.1 compliance, tolerance class 2A, and robust gauge steel construction ensures repeatable acceptance checks and long service life. Order the gauge directly via Metav Werkzeuge or consult Metav Werkzeuge's advisors for application guidance.

Thread ring gauge UNC GO No. 1 x 64 ( tolerance class 2A ) — Metav IndustryLine

Thread ring gauge UNC GO No. 1 x 64 for fast verification of external UNC threads in production and incoming inspection, designed to check conformity to ANSI/ASME B1.1 standards

• ANSI/ASME B1.1 compliant GO gauge
• Hardened gauge steel construction
• Tolerance class 2A GO verification
• Size No. 1, 64 threads per inch

Immediate, unambiguous acceptance for UNC threads

A dedicated GO ring gauge offers an objective pass condition when checking external UNC threads. The No. 1 x 64 ring verifies the essential thread form and pitch: if the ring screws on smoothly to its stop, the thread meets the intended major diameter and pitch limits for 2A external tolerance. Using a standardised gauge shortens inspection time, improves throughput and reduces the risk of false acceptance that can lead to rework or assembly failure. The hardened construction keeps the thread form stable, providing consistent mechanical reference for repeated checks.

Faster inspection cycles and simple integration into QC routines

Designed for practical workshop use, this ring gauge enables rapid go/no-go decisions without complex setup. With a clear designation of 64 tpi (threads per inch) and the size marked as No. 1, operators can match components to the correct gauge quickly. The simple screwing test removes subjective judgement: pass if the gauge fits to the stop; fail if it does not. This efficiency supports higher throughput in both production lines and incoming goods inspection while maintaining traceable identification via SKU and GTIN for inventory control.

Robust materials and standard conformity for long-term reliability

Manufactured from hardened gauge steel, the ring is resistant to wear and maintains measuring fidelity over many cycles, reducing downtime for replacement. Compliance with ANSI/ASME B1.1 gives confidence for use across markets that rely on UNC thread standards. The tolerance class 2A reflects the customary fit for external threads in general engineering practice, balancing manufacturability and assembly performance. Where repeatability and reproducible acceptance criteria are required, a properly specified ring gauge is an economical control tool that preserves product quality.

For reliable thread inspection and durable shop-floor performance, choose the Metav IndustryLine UNC GO ring gauge and contact Metav Werkzeuge for ordering or technical advice at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: M315.941
• GTIN: 4054469179964
• Label: Thread ring gauge UNC GO, No. 1 x 64 ANSI B1.1 / 2A
• Standard: ANSI/ASME B1.1/B1.2
• Material: Hardened gauge steel
• Tolerance class: 2A
• Size designation: No. 1

Measurements / Core data

• Threads per inch: 64 tpi
• Weight: 0.1 kg

Features / Applications

• GO ring gauge for UNC external threads
• Intended for production and incoming inspection
• Durable hardened construction for repeated use

FAQ

What is the primary purpose of this ring gauge?
The ring gauge serves as a GO check for external UNC threads; the Thread ring gauge UNC GO No. 1 x 64 confirms that the thread form and pitch meet the 2A acceptance limits under ANSI/ASME B1.1.

Which materials is the gauge suitable for inspecting?
The gauge inspects threaded components regardless of their substrate; it verifies the external thread geometry independently of material, with the hardened gauge steel ensuring long life when used for routine checks.

How is the pass condition determined with this gauge?
A pass is determined when the ring screws onto the external thread to the designed stop without binding; the GO criterion provides an unambiguous acceptance for the specified No. 1 x 64 UNC thread.

Does the gauge comply with recognised standards?
Yes, the gauge is manufactured to conform with ANSI/ASME B1.1, and it is specified as tolerance class 2A for external UNC threads, supporting consistent inspection across production and reception.

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