1/2" 28 TPI UNEF Thread Ring Gauge Go Right-Hand Hardened Gauge Steel ANSI B1.1/B1.2 - Metav IndustryLine

Take advantage of a hardened gauge-steel construction combined with ANSI conformity and a 2A tolerance class to ensure dependable GO checks of external UNEF threads. Request delivery and expert advice directly via Metav Werkzeuge for seamless integration into production control.

Thread ring gauge UNEF GO, 1/2 x 28 ANSI B1.1 / 2A (Metav IndustryLine)

The Thread ring gauge UNEF GO, 1/2 x 28 ANSI B1.1 / 2A is a precision check gauge for fast verification of external UNEF threads in production and inspection settings

• Hardened gauge steel construction
• UNEF 1/2" x 28, ANSI B1.1 compliant
• Tolerance class 2A for GO verification
• Right-hand thread for standard fittings

Consistent GO verification to reduce rejects

A GO ring gauge provides a binary, fast check whether an external thread meets the maximum material condition. This ring gauge is manufactured from hardened gauge steel, which preserves the nominal diameter and thread form under repetitive use and resists wear that would otherwise erode inspection accuracy. Conformity with ANSI B1.1/B1.2 ensures that thread form and pitch are compatible with standard production threads; the specified 1/2" x 28 UNEF geometry and 2A tolerance class match the expected allowance for external threads, so acceptance or rejection follows a reproducible, standards-based rule rather than subjective judgement

Easy workflow integration and traceable handling

Inspection routines benefit from instruments that are simple to handle and document. The light, compact design and clear designation make the ring suitable for inline checks at turning, thread-rolling or assembly stations. Marking such as SKU M315.954.EF and the GTIN allow traceable inventory management and quality records; the gauge’s straightforward GO principle shortens cycle times and reduces operator training effort. Because the gauge is intended for verification only, it fits naturally into statistical process control loops where quick pass/fail steps feed into corrective measures

Robust construction for long-term reliability

Durable materials and standard-compliant thread form lower the total cost of inspection by extending service intervals and reducing spurious rework. The right-hand thread configuration aligns with common fittings, preventing misapplication, while the hardened steel body maintains thread accuracy under mechanical stress. Choosing a standards-based GO gauge supports consistent assembly outcomes and helps protect component fit and function across batches, contributing to less downtime and improved production efficiency

For fast supply and technical advice on the Metav IndustryLine thread ring gauge, contact Metav Werkzeuge GmbH for order and application assistance via info@metav-werkzeuge.com or phone +49 2822 7131930

Technical data

• Article number: M315.954.EF
• GTIN: 4054469180267
• Description: Thread ring gauge UNEF GO, 1/2 x 28 ANSI B1.1 / 2A
• Size: 1/2"
• Material: hardened gauge steel
• Weight: 0.2 kg
• Standard: ANSI/ASME B1.1/B1.2
• Tolerance class: 2A
• Pitch: 28 tpi
• Special feature: right-hand thread

Facts

• Thread form: UNEF 1/2" x 28
• Tolerance: 2A (GO)
• Weight: 0.2 kg
• GTIN: 4054469180267
• SKU: M315.954.EF

Special features

• Right-hand thread
• Hardened gauge-steel construction
• Compliance with ANSI/ASME B1.1/B1.2
• Category: Gauge for external thread verification
• Suitable for production and inspection environments

FAQ

What is the primary use of this ring gauge?
The ring gauge is designed for GO verification of external UNEF threads; the Thread ring gauge UNEF GO, 1/2 x 28 ANSI B1.1 / 2A (Metav IndustryLine, SKU M315.954.EF) confirms whether thread form and diameter meet the acceptance criteria

Which standard does the gauge comply with?
Compliance is with ANSI/ASME B1.1/B1.2, so the gauge aligns with common UN thread specifications and industrial inspection practices for UNEF threads

How does tolerance class 2A affect inspection?
Tolerance class 2A defines the acceptable external thread limits for the GO check; using this class ensures consistent acceptance criteria for the external thread under test

What material is the gauge made from and why does it matter?
The gauge is made from hardened gauge steel, which sustains dimensional stability and wear resistance during repetitive production inspections, preserving measurement reliability

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