No. 12 x 32 UNEF Thread Go Ring Right-Hand, Hardened Gauge Steel, ANSI/ASME B1.1 2A - Metav IndustryLine

Take advantage of the combination of hardened gauge steel construction, ANSI/ASME B1.1 conformity and tolerance class 2A for dependable, repeatable thread verification; order the thread gauge directly via Metav Werkzeuge or contact our consultants for batch or application advice.

Thread Go Ring Gauge UNEF No. 12 x 32 (ANSI B1.1 / 2A) — GO ring, hardened gauge steel, right-hand thread (Metav IndustryLine)

A Thread Go Ring Gauge UNEF No. 12 x 32 designed for fast verification of external UNEF threads in production and inspection environments, ensuring compliance with ANSI/ASME B1.1 / B1.2 standards

• UNEF No. 12 x 32, ANSI/ASME B1.1
• Hardened gauge steel construction
• Tolerance class 2A for precision checks
• Right-hand thread fitting

Reliable pass/fail checks to maintain production flow

A GO ring provides a direct, unambiguous check of external thread geometry: the fitting indicates acceptance when the thread enters the ring without binding. Constructed from hardened gauge steel, this ring delivers high wear resistance and stable dimensions under frequent use, which preserves the gauge form and reduces the need for frequent replacement. Conformity to ANSI/ASME B1.1/B1.2 ensures that results are compatible with common engineering specifications and inspection plans, helping to keep throughput steady while maintaining documented quality standards.

Rapid verification aligned with inspection criteria

Designed for quick use at the bench or on the shop floor, the GO ring accelerates quality workflows by enabling fast, repeatable checks of thread pitch and form. The specified No. 12 x 32 format corresponds to 32 threads per inch (tpi) and is suited to UNEF external threads manufactured to 2A tolerance. Using a dedicated GO ring reduces interpretation time compared with dimensional measurements, producing an efficient go/no-go decision that supports first-article inspection and in-line sampling without compromising traceability.

Durable design that reduces total cost of inspection

The gauge's material choice — hardened gauge steel — plus its compact, single-piece geometry minimise deformation and preserve calibration between checks. Robust construction translates into prolonged service life under routine handling, lowering replacement frequency and downtime. The clear, mechanical pass criterion of a GO ring removes ambiguity from inspection records, contributing to consistent lot release and fewer production interruptions.

Practical integration and documentation for quality systems

This GO ring is supplied with clear identifying data to aid labelling and storage within an inspection system. The ring is appropriately dimensioned for UNEF threads and compatible with standard inspection jigs and fixtures; it fits seamlessly into established quality-control procedures. For discrete traceability, the SKU and GTIN can be recorded in measurement logs and inventory systems, supporting audits and batch tracking for manufacturing and maintenance activities.

Contact Metav Werkzeuge for application advice, batch availability or to arrange supply from their Emmerich distribution centre — Metav Werkzeuge’s measurement specialists will assist with technical matching and order processing

Technical Data

• Article number: M315.949.EF
• GTIN: 4054469180137
• Tariff number: 90173000
• Brand: Metav IndustryLine

Facts

• Size: No. 12
• Thread form: UNEF No. 12 x 32
• Pitch: 32 tpi
• Tolerance class: 2A
• Thread direction: Right-hand
• Weight: 0.1 kg

Special features

• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Category: Gauges (thread ring, GO)

FAQ

What is the primary purpose of this GO ring?
The GO ring is used for immediate pass/fail verification of external UNEF threads; the GO fitting confirms that threads meet the functional envelope defined by ANSI/ASME B1.1/B1.2 and the 2A tolerance.

Which thread size and pitch does the gauge accept?
The ring is specified for No. 12 x 32 UNEF external threads, corresponding to 32 threads per inch (tpi) in the standard UN series.

What materials and standards does the ring comply with?
Manufactured in hardened gauge steel, the ring is produced to match ANSI/ASME B1.1/B1.2 requirements for thread form and tolerance assessment.

How should the GO ring be used in inspection routines?
For a GO check, the external thread should enter the ring smoothly: acceptance is indicated if the thread fully engages without binding; this method offers fast conformance checks ideal for production sampling and first-article inspection.

Is the gauge suitable for industrial routine use?
Yes; the hardened construction and simple pass/fail criterion make the ring appropriate for frequent use in manufacturing, assembly and inspection stations where repetitive checks are required.

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