1 5/16" x 18 UNEF Thread Go/No-Go Ring Nogo, RH Thread, Hardened Gauge Steel, ANSI/ASME B1.1 2A - Metav IndustryLine

Take the benefit of precise, repeatable thread inspection with a hardened NOGO ring that matches ANSI/ASME B1.1 tolerances; its robust construction and clear acceptance criteria help reduce rework and speed up production checks. Order directly via Metav Werkzeuge or consult our specialists for application advice.

Thread gauge ring UNEF NOGO 1 5/16 x 18 2A — Hardened gauge-steel NOGO ring, right‑hand thread by Metav IndustryLine

The thread gauge ring UNEF NOGO 1 5/16 x 18 2A is a dedicated no‑go ring for quick verification of external UNEF threads to ANSI/ASME tolerances, designed for routine shop‑floor and incoming‑inspection use.

• NOGO ring for UNEF 1 5/16 x 18
• Hardened gauge‑steel construction
• Conforms to ANSI/ASME B1.1/B1.2
• Right‑hand thread verification

Fast, unambiguous go/no‑go control for production

A purpose‑built no‑go ring provides an immediate pass/fail result, enabling fast decisions at the machine or inspection bench. The NOGO function eliminates subjective judgement: when the ring does not enter, the thread meets the specified clearance; if it fits, the workpiece requires correction. This straightforward test improves throughput and reduces the time spent on elaborate measurement routines, supporting lean inspection processes and consistent output.

Durable design to withstand workshop environments

Manufactured from hardened gauge steel, the ring is dimensionally stable and wear‑resistant, which maintains reliability over many cycles. The hardened material resists deformation and keeps the inspection limit accurate, reducing the need for frequent replacement. The compact, solid design is particularly suitable for repetitive checks in production, offering a dependable tool for quality assurance teams and metrology technicians.

Standardised tolerances for traceable acceptance

The gauge is made to ANSI/ASME B1.1/B1.2 with tolerance class 2A, matching common engineering practice for external UNEF threads. Using a standardised NOGO ring simplifies conformity assessments during incoming inspection and in‑process checks, ensuring fewer disputes with suppliers and clearer documentation of compliance. Clear specification adherence also eases integration into existing quality procedures and audits.

Practical fit for workshop and inspection tasks

With a pitch of 18 and nominal size 1 5/16", this no‑go ring is optimised for the specified UNEF thread form and right‑hand orientation. The compact handling and quick check principle make it a pragmatic tool for machinists and inspectors who require rapid verification without complex setup. The robust construction and standard conformity together offer a balance of durability and precision for everyday use.

For reliable thread verification with hardened gauge steel, contact Metav Werkzeuge to discuss suitability and order the right‑hand UNEF NOGO 1 5/16 x 18 2A ring from Metav IndustryLine.

Technical data

• Article number: M315.993.EF
• GTIN: 4054469181141
• Weight: 0.6 kg
• Material: hardened gauge steel
• Size: 1 5/16"
• Pitch: 18
• Tolerance class: 2A
• Standard: ANSI/ASME B1.1/B1.2
• Special feature: right‑hand thread

Key figures

• Type: NOGO thread ring
• Application: external thread verification
• Category: gauges / inspection tools
• SKU: M315.993.EF

Features & materials

• Hardened construction for wear resistance
• UNEF thread form
• Designed for shop‑floor and incoming inspection
• Robust single‑piece design

FAQ

What is the intended use of this NOGO thread ring?
The thread gauge ring UNEF NOGO 1 5/16 x 18 2A is intended for quick no‑go verification of external UNEF threads to confirm whether threads exceed the allowable maximum material condition.

Does the ring comply with recognised standards?
Yes, the Metav IndustryLine NOGO ring is made to ANSI/ASME B1.1/B1.2 specifications and tolerance class 2A, ensuring standardised acceptance criteria.

Which thread orientation does this gauge check?
This NOGO ring is manufactured for right‑hand external threads and is intended specifically for the UNEF 1 5/16 x 18 form.

Is the gauge suitable for continuous shop‑floor use?
The hardened gauge‑steel construction of the Metav IndustryLine ring provides wear resistance and stability, making it well suited for repetitive production checks and routine inspection tasks.

How is the result of the check interpreted?
If the NOGO ring does not enter the test thread, the thread is within the maximum material limits specified by ANSI/ASME B1.1; if the ring fits, the thread is oversize and requires corrective action.

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