No. 1 x 72 Thread Gauge UNF Go, Right-Hand, Hardened Gauge Steel, ANSI/ASME B1.1/B1.2 - Metav IndustryLine

Order with confidence: the combination of hardened gauge steel, ANSI conformity and a clear 2A tolerance class ensures fast, repeatable go/no-go checks for external UNF threads. Secure supply from a European quality filter and order directly via Metav Werkzeuge or consult our specialists for application advice.

UNF Go ring gauge No. 1 x 72 (ANSI B1.1 / 2A) — Go ring gauge, hardened gauge steel, Metav IndustryLine

The UNF Go ring gauge No. 1 x 72 (ANSI B1.1 / 2A) is a hardened gauge-steel checking ring intended for rapid verification of external UNF threads in production and inspection environments.

• UNF Go ring gauge No. 1 x 72
• Hardened gauge steel construction
• Conforms to ANSI/ASME B1.1/B1.2
• Tolerance class 2A for precise checks
• Right-hand thread design

Rapid go/no-go verification that keeps production flowing

This ring gauge provides a straightforward, deterministic check for external UNF threads, enabling quick acceptance or rejection of threaded parts on the shop floor. By using a purpose-built go ring, measurement time is reduced compared with gauges that require more complex set-ups; the result is consistent throughput and fewer interruptions to production. The tool is ideal for inline quality control where speed and repeatability matter.

Durable construction for long service life and low maintenance

Manufactured from hardened gauge steel, the ring resists wear from repeated use and retains form stability over time, which reduces the frequency of replacements and recalibrations. Hardening improves resistance to abrasion and impact common in workshop handling, so the gauge preserves its dimensional integrity even under heavy use. The material choice translates directly into lower life‑cycle costs and predictable inspection intervals.

Standards-based design that reduces conformity risk

Conformance to ANSI/ASME B1.1/B1.2 and designation as 2A tolerance class provide unambiguous criteria for pass/fail decisions when checking external threads. The 72 tpi pitch and size designation No. 1 match industry standard fasteners, so the gauge integrates seamlessly into existing quality procedures and documentation. Using a standards-compliant master gauge simplifies audits and supports traceable quality assurance.

Practical workshop handling and traceability features

The compact, single-piece ring is easy to store and handle during repeat checks, and its right-hand thread geometry mirrors common fastener practice for straightforward alignment. Lightweight and rigid, the gauge suits frequent operator use and can be incorporated into go/no-go stations without excessive fixturing. Supplied as a single master ring, it supports basic traceability workflows and, when paired with Metav’s supply chain, benefits from European stock and logistical reliability.

For reliable UNF thread verification select this Metav IndustryLine Go ring gauge and contact Metav Werkzeuge for specification matching or batch availability — our Emmerich team provides practical advice and supply from the European quality filter.

Technical data

• Article number: M315.941.F
• GTIN: 4054469179971
• SKU: M315.941.F

Facts

• Size designation: No. 1
• Pitch: 72 tpi
• Tolerance class: 2A
• Weight: 0.1 kg

Special features

• Material: Hardened gauge steel
• Thread form: UNF external thread
• Thread direction: Right-hand thread
• Standard: ANSI/ASME B1.1/B1.2
• Application: Go/no-go inspection of external UNF threads

FAQ

What is this gauge used for?
This go ring gauge serves as a go/no-go master for checking external UNF threads; the UNF Go ring gauge No. 1 x 72 (ANSI B1.1 / 2A) confirms whether a part meets the 2A acceptance limits.

Does the gauge conform to recognised standards?
Yes — the ring is manufactured to ANSI/ASME B1.1/B1.2 requirements and is specified for tolerance class 2A, ensuring compatibility with standard UNF fastener specifications.

Which material is the ring made from?
The gauge is made from hardened gauge steel, chosen for wear resistance and dimensional stability under frequent inspection cycles.

Can this gauge check left-hand threads?
No; this item has a right-hand thread geometry. For left-hand applications, a left-hand version must be selected.

How is traceability documented for this gauge?
The Metav IndustryLine gauge is supplied with product identification (SKU M315.941.F and GTIN 4054469179971) to support inventory and traceability records.

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