7/8" 14 TPI No-Go Thread Ring Gauge UNF Right-Hand Hardened Gauge Steel ANSI/ASME B1.1 2A - Metav IndustryLine

Take advantage of the combination of strict ANSI/ASME conformity, hardened gauge steel construction and a clear 2A tolerance for reliable pass/fail inspection. Order the thread ring gauge directly via Metav Werkzeuge or ask our consultants if needed.

Thread ring gauge UNF NOGO, 7/8" x 14, 2A — Metav IndustryLine

The Thread ring gauge UNF NOGO 7/8 x 14 2A is a No‑Go inspection ring designed for right‑hand UNF threads to verify thread acceptability in production and incoming inspection.

• No‑Go inspection for UNF 7/8" x 14 threads
• Complies with ANSI/ASME B1.1/B1.2 standards
• Hardened gauge steel for long service life
• Tolerance class 2A for precise acceptance limits

Reliable rejection where it matters most

The Thread ring gauge UNF NOGO 7/8 x 14 2A serves as a definitive control tool for thread acceptance, providing an immediate yes/no result for production parts. As a No‑Go gauge, it is set to the maximum permissible limits defined by ANSI/ASME B1.1, so a part that enters the ring fails the inspection and is flagged for rework or rejection. This clear pass/fail logic reduces subjective judgement on the shop floor and minimises the risk of out‑of‑specification assemblies reaching downstream operations.

Built for durability and consistent performance

Manufactured from hardened gauge steel, the inspection ring stands up to repeated use in industrial environments while maintaining dimensional integrity. The robust material and precision heat treatment preserve the critical thread profile, ensuring long-term repeatability and low wear. With a compact mass of 0.4 kg and a right‑hand thread configuration to match standard UNF assemblies, the gauge supports rapid throughput in quality control processes and reduces downtime caused by frequent replacement.

Integrates with quality workflows and standards

Designed for straightforward inclusion into existing inspection routines, the No‑Go ring complements Go gauges and visual checks to form a complete acceptance system. The defined 2A tolerance aligns the gauge with common fit classes for external threads, helping to verify functional fit with mating parts. Traceable identification via SKU M315.988.F supports inventory and inspection records, while adherence to established standards simplifies certification and audit processes—benefits that translate into faster decision cycles and fewer customer returns.

Contact Metav Werkzeuge for supply and technical guidance on the Metav IndustryLine thread ring gauges, quoting M315.988.F to ensure the correct specification for production control.

Technical data

• Article number: M315.988.F
• GTIN: 4054469181035
• Brand: Metav IndustryLine
• Designation: Thread ring gauge UNF NOGO, 7/8" x 14, 2A

Core technical data

• Size: 7/8" x 14 tpi
• Tolerance class: 2A
• Thread direction: right‑hand
• Weight: 0.4 kg
• Standard: ANSI/ASME B1.1/B1.2

Materials & special features

• Material: hardened gauge steel
• Type: No‑Go (NOGO) inspection ring
• Use: Production and incoming thread inspection
• SKU: M315.988.F

FAQ

What is the primary function of this No‑Go thread ring gauge?
The No‑Go ring verifies whether external threads exceed maximum material limits; the Thread ring gauge UNF NOGO 7/8 x 14 2A (Metav IndustryLine, SKU M315.988.F) immediately identifies out‑of‑tolerance parts for rejection.

Does this gauge comply with recognised standards?
Yes. The inspection ring is manufactured to the ANSI/ASME B1.1/B1.2 thread standards and is specified for the UNF 7/8" × 14 tpi form with a 2A external tolerance class.

What material is used and how does that benefit workshop use?
Made from hardened gauge steel, the ring offers durable wear resistance and dimensional stability, which maintains reliable inspection performance over many cycles in a production environment.

Can this No‑Go gauge be used on both right‑ and left‑hand threads?
This specific item is supplied for right‑hand UNF threads; the Metav IndustryLine No‑Go ring M315.988.F is intended for right‑hand applications and must be matched to the thread direction of the parts under inspection.

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