5/8" UNF Thread Go/No-Go Ring Gauge, Right-Hand 18 TPI, ANSI B1.1 2A - Metav IndustryLine

Taking advantage of the NOGO control principle together with ANSI/ASME B1.1 compliance and a hardened gauge steel body ensures fast, reproducible thread verification and long service life; order the ring gauge directly via Metav Werkzeuge or contact our consultants for advice.

Thread Ring Gauge UNF NOGO, 5/8 x 18 (ANSI B1.1 / 2A) — Metav IndustryLine

Thread Ring Gauge UNF NOGO, 5/8 x 18 provides a compact, robust solution for quick go/no-go verification of external UNF threads in production and inspection environments.

• NOGO gauge for UNF 5/8"-18 threads
• Conforms to ANSI/ASME B1.1 standard
• Hardened gauge steel construction
• Right-hand thread only

Fast, unambiguous pass/fail control for threaded parts

The ring serves as a dedicated NOGO inspection tool for UNF 5/8" x 18 threads, designed to deliver an immediate pass/fail decision on the shop floor. Built to the ANSI/ASME B1.1 profile and tolerance class 2A, the gauge enables rapid sampling without time‑consuming measurement setups, reducing bottlenecks in assembly and receiving inspection. By using a dedicated NoGo ring, inspection processes are simplified: a correct external thread will not accept the NOGO ring, which provides a clear, reproducible criterion for conformity and helps keep throughput consistent.

Robust construction for repeatable results and long service life

Manufactured from hardened gauge steel, the ring gauge is dimensionally stable and resistant to wear, protecting the inspection limit against deformation during repeated use. The hardened material and precise machining maintain the defined thread envelope over many cycles, which reduces the need for frequent replacements and preserves measurement reliability. The compact mass (approx. 0.4 kg) and solid design make it straightforward to handle at the inspection bench while ensuring the profile remains unchanged under normal operating conditions.

Integration into quality routines and procurement traceability

The ring gauge is intended for use in routine quality control, incoming inspection and final checks where clear limit assessment is required. As a standardised instrument compatible with common UNF workflows, it can be incorporated into control plans and quality documentation with minimal adaptation. Supplied under the Metav IndustryLine portfolio, the gauge benefits from a European distribution and logistical centre in Emmerich, emphasising accessible precision for workshops and industrial buyers; this support contributes to reliable supply chains and predictable replenishment for production environments.

For reliable, standard‑compliant thread inspection, request the Metav IndustryLine thread ring gauge (M315.986.F) from Metav Werkzeuge and consult our Emmerich team for delivery options and suitability advice

Technical data

• Article number: M315.986.F
• GTIN: 4054469180977
• Weight: 0.4 kg
• Material: Gauge steel, hardened
• Standard: ANSI/ASME B1.1/B1.2
• Thread size: 5/8" x 18
• Pitch: 18
• Tolerance class: 2A
• Description: Thread ring gauge, NOGO, right-hand thread

Facts

• Mass (approx.): 0.4 kg
• Tariff number: 90173000
• Eclass: 21170214

Special features

• NOGO limit gauge for UNF threads
• Right-hand thread specification
• Hardened construction for wear resistance
• Category: Gauge pins / Gauges

FAQ

What is the primary purpose of this ring gauge?
The Thread Ring Gauge UNF NOGO, 5/8 x 18 is intended for rapid go/no‑go verification of external UNF threads; as a NoGo ring it provides a clear fail condition if a thread exceeds allowable limits.

Does the gauge comply with recognised standards?
Yes. The profile and limits follow ANSI/ASME B1.1 with tolerance class 2A, ensuring the gauge matches widely accepted UNF thread definitions.

Can this gauge be used on left‑hand threads?
No. This NoGo ring is manufactured for right‑hand thread inspection only and is not suitable for left‑hand thread checks.

Which SKU identifies this item for ordering and inventory?
The product is listed as M315.986.F, Metav IndustryLine, and is intended for use in production control and incoming inspection workflows.

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