7/8" 14 TPI UNF Thread Gauge Ring Go, Right-Hand, Hardened Gauge Steel, ANSI B1.1 2A - Metav IndustryLine

Take advantage of the combination of strict compliance with ANSI/ASME thread standards, hardened gauge‑steel construction and compact handling to keep incoming inspections swift and reproducible; order the gauge directly via Metav Werkzeuge or contact our consultants for application advice.

Gewinde-Lehrring UNF GO, 7/8 x 14 ANSI B1.1 / 2A — GO external thread gauge, right‑hand, hardened steel

Gewinde-Lehrring UNF GO, 7/8 x 14 ANSI B1.1 / 2A is a GO‑type external thread gauge designed for quick, repeatable verification of UNF threads in production and inspection environments

• UNF 7/8" × 14 TPI to ANSI/ASME B1.1
• Hardened gauge steel construction
• Tolerance class 2A for external threads
• Right-hand GO gauge, lightweight 0.4 kg

Certainty where standards matter

The gauge is manufactured to ANSI/ASME B1.1/B1.2, ensuring that thread acceptance is aligned with internationally recognised criteria. As a GO external thread gauge it verifies that a mating thread will assemble correctly when the major and pitch diameters are within allowable limits; the designation tolerance class 2A indicates industrial‑grade fit for most production and service parts. Specified as 7/8 in × 14 TPI, the ring is suited to UNF‑series components where repeatable conformity checks reduce rework and rejected parts.

Robust construction for steady measurement throughput

Made from hardened gauge steel, the ring combines wear resistance with stable geometry for thousands of Go/No‑Go cycles. The modest mass of 0.4 kg and compact form support rapid handling at inspection benches and in process control stations, while the hardened material reduces dimensional drift over time. The right‑hand thread orientation matches standard fastener practice and the GO type prioritises pass confirmation, keeping throughput high during routine checks.

Practical benefits for quality control and production

Using a dedicated GO ring streamlines the inspection step: acceptance becomes a simple tactile and visual check, eliminating time‑consuming micrometric comparisons for every part. Traceability is supported by the clear SKU and GTIN labelling for stock management and audit trails; compliance with ANSI/ASME standards provides a defensible inspection criterion during supplier control and final shipment clearance. This tool is particularly effective in series production where consistent, fast decisions are required.

Typical applications and handling recommendations

Ideal for mechanical workshops, assembly lines and inspection laboratories, the gauge suits external UNF threads on shafts, studs and fittings. Gentle, perpendicular engagement and light rotational verification ensure correct seating without damaging the part or gauge. When integrated into a control plan, the ring reduces ambiguity in acceptance criteria and helps maintain production rhythm while safeguarding function of assembled joints.

Contact Metav Werkzeuge today for tailored guidance on Metav IndustryLine gauges and to arrange supply or technical clarification directly from our Emmerich hub

Technical data

• Article number: M315.958.F
• GTIN: 4054469180397
• Label: Gewinde-Lehrring UNF GO, 7/8 x 14 ANSI B1.1 / 2A

Facts

• Thread: 7/8" × 14 TPI
• Tolerance class: 2A
• Weight: 0.4 kg

Special features

• Material: gauge steel, hardened
• Standard: ANSI/ASME B1.1/B1.2
• Right-hand thread
• Type: GO external thread gauge
• Category: Gauges / Lehren

FAQ

What does the GO designation check for on this ring gauge?
The GO designation confirms that the external thread fits within specified major and pitch diameter limits; the Gewinde-Lehrring UNF GO, 7/8 x 14 ANSI B1.1 / 2A from Metav IndustryLine verifies pass condition for mating parts.

Is this gauge suitable for series inspection in production?
Yes. The hardened gauge‑steel construction and adherence to ANSI/ASME B1.1/B1.2 make the Metav IndustryLine ring robust for repeated production checks and fast acceptance decisions.

Which thread form and pitch does this ring cover?
This ring is for UNF threads specified as 7/8 in × 14 TPI, providing a direct check for external threads manufactured to that pitch and form.

How should the gauge be handled to avoid damage?
Handle the GO gauge with light, perpendicular engagement and a gentle rotational check; storing it clean and dry prolongs life and keeps dimensions stable.

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