1 1/8" 18 TPI UNEF Thread Go Ring Right-Hand, Hardened Gauge Steel, ANSI B1.1/B1.2 - Metav IndustryLine

Take advantage of precise, standards‑compliant thread verification and a hardened gauge‑steel construction to reduce rework and speed up quality checks; order the UNEF GO thread ring gauge, 1 1/8" x 18, ANSI B1.1 / 2A directly via Metav Werkzeuge or ask our consultants for application advice.

UNEF GO thread ring gauge, 1 1/8" x 18 (ANSI B1.1 / 2A) — Metav IndustryLine, hardened gauge steel, right‑hand thread

The UNEF GO thread ring gauge, 1 1/8" x 18, ANSI B1.1 / 2A is a GO‑only ring gauge for rapid acceptance testing of external UNEF threads in production and incoming inspection, designed for repeatable pass/fail checks in workshop and inspection environments.

• Hardened gauge steel construction
• Conforms to ANSI/ASME B1.1/B1.2
• Tolerance class 2A for GO checking
• Right‑hand UNEF 18 tpi thread

Ensure correct thread fit at first inspection

A GO ring gauge delivers an unequivocal acceptance criterion: the part either enters the gauge or it does not. The use of hardened gauge steel ensures dimensional stability and wear resistance, so routine checks remain reliable over many cycles. Because this ring is made to ANSI/ASME B1.1 dimensions and marked 2A, it gives an immediate, standards‑based verdict on external UNEF threads. For production lines this translates into faster go/no‑go decisions, fewer false rejects and a measurable reduction in downstream rework.

Built for durability and consistent measurement

The gauge’s right‑hand thread form and heat‑treated material provide robustness where contact and handling are frequent. Hardened construction minimises profile wear, which preserves the original tolerance class and maintains interchangeability with mating gauges and master threads. Using a dedicated GO gauge conserves operator time: one quick check confirms compliance with the specified UNEF 18 tpi geometry, improving throughput without sacrificing traceability or auditability.

Integrates simply into workshop and inspection routines

Compact and straightforward to use, this GO ring gauge supports lean inspection routines and statistical process control setups. Marked and referenced to the ANSI B1.1 standard, it complements visual and dimensional control methods and can be logged in QA protocols to document periodic checks. The clear pass/fail principle reduces operator ambiguity, while the hardened gauge‑steel body offers a long service life that aligns with Metav’s focus on reliable, cost‑effective metrology supplies.

For dependable thread verification with Metav IndustryLine quality, request the UNEF GO ring gauge from Metav Werkzeuge in Emmerich or contact our technical consultants at info@metav-werkzeuge.com or +49 2822 7131930 for tailored advice.

Technical data

• Article number: M315.961.EF
• GTIN: 4054469180458
• Material: gauge steel, hardened
• Thread size: 1 1/8" x 18 UNEF
• Pitch: 18 tpi
• Tolerance class: 2A
• Standard: ANSI/ASME B1.1/B1.2
• Mass: 0.6 kg
• Special feature: right‑hand thread

Facts

• Type: GO ring gauge
• Application: external UNEF thread acceptance
• Category: gauges / inspection tools
• SKU: M315.961.EF

Special features

• Hardened for wear resistance
• GO‑only acceptance criterion
• Workshop and inspection suitable
• Packaged for secure transport

FAQ

What is the primary use of this ring gauge?
The UNEF GO ring gauge is used for quick acceptance testing of external UNEF threads to verify that parts meet the specified ANSI B1.1 profile and 2A tolerance.

Does the gauge indicate wear or need recalibration?
Wear is mitigated by the hardened gauge‑steel construction; the Metav IndustryLine GO ring gauge should be inspected periodically and replaced or calibrated if fit becomes marginal.

Can this gauge be used for left‑hand threads?
This specific ring is manufactured with a right‑hand thread form; left‑hand applications require a correspondingly manufactured gauge.

Is the thread size 1 1/8" x 18 compatible with common UNEF applications?
Yes, the 1 1/8" x 18 UNEF specification is standardised and the gauge is produced to match ANSI/ASME B1.1 dimensions for that thread series.

How should this GO ring gauge be integrated into quality documentation?
Record pass/fail results from each inspection using the gauge, reference the Metav IndustryLine SKU M315.961.EF and note the standard (ANSI B1.1) and tolerance class (2A) in quality logs

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