1" UNEF Go Thread Ring 1 x 20 TPI Right-Hand, ANSI B1.1/B1.2, Hardened Gauge Steel - Metav IndustryLine

Precision, conformity and durability converge in this hardened gauge‑steel thread ring: compliant with ANSI/ASME B1.1/B1.2, finished to tolerance class 2A, and designed for reliable go/no‑go verification of 1 in × 20 tpi threads. Order the thread ring gauge directly via Metav Werkzeuge or consult our specialists for application advice.

UNEF Thread Ring Gauge GO, 1 in × 20 tpi — Metav IndustryLine (Hardened Gauge Steel, ANSI/ASME B1.1)

A precision UNEF GO thread ring gauge for go/no‑go verification of 1 in × 20 tpi right‑hand threads in production and incoming inspection.

• UNEF 1 in × 20 tpi GO thread gauge
• ANSI/ASME B1.1/B1.2 compliant
• Hardened gauge‑steel construction

Certified conformity for dependable inspection results

Certified to ANSI/ASME B1.1/B1.2 and finished to tolerance class 2A, this ring gauge provides a rational basis for acceptance or rejection decisions on threaded parts. The GO gauge confirms that external threads meet the required upper limits for form and size, enabling rapid pass/fail checks on production lines or at goods‑in inspection. By using an industry‑matched standard and a clearly defined tolerance band, measurement uncertainty is limited and documentation requirements for quality systems are simplified.

Robust material and geometry for repeatable performance

Manufactured from hardened gauge steel, the design prioritises wear resistance and dimensional stability so that calibration intervals are extended and replacement cycles are reduced. The compact design and precise thread form maintain contact over the full flank to ensure consistent engagement during repeat checks. This durability translates into fewer production interruptions and lower lifetime cost of ownership compared with unguided verification methods.

Practical benefits in workshop and production workflows

Intended for routine thread verification, the gauge suits both workshop test benches and shop‑floor quality stations. The right‑hand UNEF form and a 20 tpi pitch match common imperial threads found in legacy and current assemblies, making the gauge a versatile tool for maintenance, assembly and incoming inspection tasks. Integration into standard operating procedures supports traceable quality control and reduces rework by identifying non‑conforming threads before assembly.

For technical guidance or to reserve the Metav IndustryLine UNEF GO ring gauge (M315.960.EF) from our Emmerich stock, contact Metav Werkzeuge for tailored advice by phone or email

Technical data

• Article number: M315.960.EF
• GTIN: 4054469180427
• Label: UNEF Thread Ring Gauge GO, 1 in × 20 ANSI B1.1 / 2A

Numerical data

• Size: 1 in × 20 tpi
• Pitch: 20 tpi
• Weight: 0.6 kg
• Tolerance class: 2A
• Standard: ANSI/ASME B1.1/B1.2

Special features

• Material: hardened gauge steel
• Thread form: UNEF
• Thread direction: right‑hand thread
• Application: go/no‑go verification of external threads
• Category: gauges

FAQ

What does the GO designation mean for a thread ring gauge?
The GO designation indicates that the ring gauge verifies whether an external thread meets the maximum material limits; the UNEF Thread Ring Gauge GO, 1 in × 20 tpi (M315.960.EF) permits parts that fit to be accepted.

Which standard and tolerance class does this gauge follow?
This ring gauge is produced to ANSI/ASME B1.1/B1.2 and finished to tolerance class 2A, matching common engineering requirements for unified external threads.

Can this gauge be used on right‑hand threads only?
Yes, the product is specified as a right‑hand thread and is intended for verification of standard right‑hand UNEF external threads.

What material is the gauge made from and why does that matter?
The gauge is made from hardened gauge steel, chosen for high wear resistance and dimensional stability so measurement performance remains reliable over many inspection cycles.

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