1.1/2" UNEF Thread Go/No-Go Ring Right-Hand 18 TPI ANSI B1.1/B1.2, Hardened Gauge Steel - Metav IndustryLine

Take advantage of a robust inspection tool that combines ANSI conformity, hardened gauge steel construction and a clear No‑Go limiting function to reduce rework and speed up batch acceptance. The compact No‑Go ring protects production against out‑of‑tolerance threads and supports rapid pass/fail decisions on the shop floor; order directly via Metav Werkzeuge or consult the Metav team for specification matching.

Gewinde‑Lehrring UNEF NOGO, 1.1/2 x 18 ANSI B1.1 / 2A — Thread ring gauge, UNEF No‑Go, Metav IndustryLine

Gewinde‑Lehrring UNEF NOGO, 1.1/2 x 18 ANSI B1.1 / 2A is a workshop inspection gauge for rapid verification of external threads, designed for production and incoming inspection of parts with fine UNEF threads.

• UNEF No‑Go ring, 1 1/2" x 18
• ANSI B1.1/B1.2 compliant tolerance
• Hardened gauge steel construction
• Right‑hand thread, tolerance class 2A

Fast, unambiguous thread assessment to reduce downtime

A dedicated thread ring gauge with a No‑Go function provides immediate, binary results for threaded components: either the thread is acceptable or it must be reworked. The No‑Go characteristic simplifies operator decisions, minimising subjective judgement and speeding throughput on the production line. Built in hardened gauge steel, the ring resists wear during repeated checks so calibration intervals are extended and measurement integrity is preserved. For shops handling standard fittings and components, this form of gauging is the most efficient way to prevent out‑of‑tolerance parts reaching assembly.

Designed for repeatability and shop‑floor resilience

This inspection ring is manufactured to the ANSI B1.1/B1.2 thread form and specified tolerance class 2A, ensuring compatibility with American UNEF screw threads. The defined 1 1/2" x 18 size and right‑hand thread are clearly marked to avoid mix‑ups during inspection routines. Its compact footprint and a mass around 0.7 kg make it easy to use at incoming goods or final inspection benches. Because gauging relies on mechanical limits rather than electronics, the method remains robust under industrial conditions and is ideal where simple, reproducible checks are required at high cadence.

Integration into quality processes and supplier control

Adopting a calibrated No‑Go ring as part of a quality plan supports traceability and supplier assurance. When a part fails the No‑Go check it signals a clear non‑conformance that can be tracked back to process parameters or supplier batches, reducing subjective rejection rates and enabling targeted corrective actions. The combination of standard conformity and durable materials makes this gauge suitable for repetitive usage in inspection rooms and production lines, reinforcing documented acceptance criteria and helping to maintain consistent assembly quality.

For secure and standard‑compliant thread inspection choose the Metav IndustryLine No‑Go ring and contact Metav Werkzeuge GmbH in Emmerich for application advice or to request the matching inspection equipment and documentation.

Technical Data

• Article number: M315.995.EF
• GTIN: 4054469181196
• Mass: 1 1/2"
• Weight: 0.7 kg
• Material: Lehrenstahl, hardened
• Standard: ANSI/ASME B1.1/B1.2
• Pitch: 18
• Tolerance class: 2A
• Label: Gewinde‑Lehrring UNEF NOGO, 1.1/2 x 18 ANSI B1.1 / 2A
• SKU: M315.995.EF

Facts

• Thread form: UNEF
• Hand: Right‑hand thread
• Function: No‑Go (NOGO) inspection ring
• Application area: Threaded parts inspection, incoming goods, in‑process control

Special features

• Hardened gauge steel construction
• Suited for shop‑floor repetitive checks
• Clear identification to avoid mix‑ups
• Compact format for bench or portable inspection

FAQ

What is the primary use of this No‑Go ring gauge?
The Gewinde‑Lehrring UNEF NOGO, 1.1/2 x 18 ANSI B1.1 / 2A is intended for quick pass/fail verification of external UNEF threads, used in incoming inspection and production control to detect out‑of‑tolerance threads.

Does the gauge comply with industry standards?
Yes. The ring is manufactured to ANSI B1.1/B1.2 specifications and produced to tolerance class 2A, ensuring its suitability for standard UNEF thread checks.

What material is the inspection ring made from?
This No‑Go ring is made from hardened gauge steel, selected for wear resistance and long service life under frequent use.

Can this gauge be used for left‑hand threads?
No; this particular ring is a right‑hand thread tool. Left‑hand variants must be specified separately.

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