3/8" x 24 UNF Thread Go Gauge, Right-Hand, Hardened Gauge Steel, ANSI/ASME B1.1 2A - Metav IndustryLine

The combination of an ANSI‑compliant thread standard, hardened gauge steel construction and a precise 2A tolerance ensures reliable GO testing of UNF external threads; order the gauge directly via Metav Werkzeuge or consult the technical advisors for specification matching.

Thread Ring Gauge UNF GO 3/8‑24, 2A — Go ring gauge, hardened gauge steel (Metav IndustryLine)

The Thread Ring Gauge UNF GO 3/8‑24, 2A is a GO ring for production and inspection of external UNF threads to ANSI/ASME B1.1 standards.

• GO ring gauge for UNF 3/8‑24 threads
• Conforms to ANSI/ASME B1.1
• Hardened gauge steel construction
• Tolerance class 2A, right‑hand thread

Consistent pass/fail assurance for UNF external threads

The GO concept delivers a straightforward, objective check: the ring must thread onto the part without interference when the thread form and major diameter are within the acceptable limits. Manufactured from hardened gauge steel and specified to ANSI/ASME B1.1, this ring gauge gives a reproducible verification step for production lines and incoming‑inspection stations. The 2A tolerance denotes the external thread class and clarifies the acceptance envelope during process control, reducing subjective judgements and speeding throughput.

Robust design for repeatable workshop and shop‑floor use

Constructed as a right‑hand go ring, the tool is optimised for frequent handling and quick checks at the machine or inspection bench. The hardened steel body resists wear, keeping the gauge geometry stable over many cycles and maintaining measurement integrity. With a standard UNF size of 3/8‑24 tpi, the gauge suits common fastener families in general engineering and maintenance work. The simple, mechanical go check reduces cycle time compared with full gauging or CMM checks while providing a clear go/no‑go decision point for operators.

Improve quality control and reduce rework in production

Integrating this ring gauge into a routine inspection step helps to catch out‑of‑tolerance threads before assembly, lowering scrap and rework rates. The mechanical GO check is fast and intuitive, aiding operators and quality staff to keep processes within specification without complex set‑ups. Backed by Metav IndustryLine’s focus on accessible precision, the gauge supports consistent part acceptance and contributes to a reliable supply chain — an efficient solution for workshops aiming to balance throughput and quality.

Select the Metav IndustryLine thread gauges for dependable, standards‑based inspection and contact Metav Werkzeuge in Emmerich for application advice and supply coordination.

Technical Data

• Article number: M315.952.F
• GTIN: 4054469180212
• Label: Gewinde‑Lehrring UNF GO , 3/8 x 24 ANSI B1.1 / 2A

Facts

• Thread size: 3/8"
• Thread pitch: 24 tpi
• Weight: 0.1 kg
• ECLASS: 21170214

Special features

• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Tolerance class: 2A
• Right‑hand thread
• Category: Gauges / Go ring

FAQ

What does the GO designation mean for this ring gauge?
The GO designation indicates the gauge is used to verify that an external thread meets the minimum material and form requirements; the Thread Ring Gauge UNF GO 3/8‑24, 2A must fit the part if the thread is acceptable.

Is this gauge suitable for production line checking of UNF fasteners?
Yes, the ring gauge is intended for routine production and inspection tasks for UNF 3/8‑24 threads and gives a rapid, repeatable pass result when threads conform to ANSI/ASME B1.1.

What material is the gauge made from and why does it matter?
The gauge is made from hardened gauge steel, which preserves the thread form and dimensional stability under repeated use, maintaining reliable inspection criteria over time.

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