1/2" 20 UNF Thread Plug Gauge Right-Hand Hardened Gauge Steel ANSI B1.1/B1.2, 2B - Metav IndustryLine

Take advantage of a robust inspection tool that combines ANSI/ASME conformity, a hardened gauge steel body and a precise tolerance class 2B specification to secure reliable thread verification and fewer reworks in production. Order the gauge directly via Metav Werkzeuge or ask the consultants for application guidance.

Thread plug gauge UNF 1/2 x 20 ANSI/ASME B1.1 — 2B (Metav IndustryLine)

The thread plug gauge UNF 1/2 x 20 is a right‑hand verification gauge for internal UNF threads, engineered for workshop and quality‑control use in accordance with ANSI/ASME B1.1 standards

• Hardened gauge steel construction
• UNF 1/2 x 20 to ANSI/ASME B1.1
• Tolerance class 2B verification
• Right‑hand thread

Consistent acceptance testing to reduce rejects

The primary advantage of this plug gauge lies in its ability to deliver reproducible acceptance results for UNF internal threads. Built to the ANSI/ASME B1.1 profile and specified as tolerance class 2B, the tool provides a clear go/no‑go criterion so that inspection stations and incoming‑goods checks run faster and with fewer disputes. Using a dedicated gauge for thread verification minimises interpretation variance in visual or dimensional checks and supports a tighter production control loop.

Durable materials for long service life

Manufactured from hardened gauge steel, the gauge resists wear across repeated engagement cycles, preserving the thread profile for extended usage. The solid construction sustains dimensional stability under typical workshop handling and reduces the frequency of replacement tools. For production environments where consistent mechanical fit is critical, the robust design translates into lower lifetime cost through fewer adjustments and less downtime.

Simple integration into inspection workflows

Designed as a compact verification device, the plug gauge eases bench checks and pass/fail stations without special fixtures. The right‑hand thread and standard UNF format permit immediate comparability with mating parts and technical drawings; this simplicity helps quality teams maintain traceability and quick decision making during batch inspections. The gauge is also lightweight and easy to store alongside other measuring instruments, streamlining the inspection process.

Suited to workshop and quality departments

The gauge is well suited to machine shops, assembly lines and quality laboratories that require a fast, standards‑based check for internal threads. As a straightforward, standards‑compliant tool, it supports compliance verification across supply chains and reduces uncertainty during acceptance. Maintenance teams and quality engineers gain a practical instrument that complements calipers and optical checks with definitive go/no‑go results.

Contact Metav Werkzeuge today for application advice and to secure this Metav IndustryLine thread plug gauge, with dependable supply from Emmerich to your workshop.

Technical data

• Article number: M315.924.F
• GTIN: 4054469179636
• Name: Thread plug gauge UNF 1/2 x 20
• Standard: ANSI/ASME B1.1/B1.2
• Tolerance class: 2B
• Thread hand: Right‑hand
• Material: Hardened gauge steel
• Weight: 0.2 kg

Core measurements

• Size: 1/2"
• Thread: 20 TPI
• Weight: 0.2 kg
• Tariff number: 90173000

Features and applications

• Verification of internal UNF threads
• Hardened gauge steel construction
• Compliance with ANSI/ASME B1.1
• Category: Measuring pins; Gauges

FAQ

What does tolerance class 2B indicate for internal threads?
Tolerance class 2B designates the standard internal thread tolerance for general engineering applications under the ANSI/ASME B1.1 system; the thread plug gauge confirms whether a component falls within that acceptance band.

Can this gauge be used for incoming inspection on production parts?
Yes. The plug gauge is intended for incoming‑goods and production inspection to verify that internal UNF 1/2 x 20 threads conform to the ANSI/ASME B1.1 profile and meet tolerance class 2B requirements.

What material is the gauge made from and how does that affect wear?
The gauge is manufactured from hardened gauge steel, which provides increased resistance to wear and maintains the thread profile over numerous inspection cycles, extending service life.

Is this a right‑hand or left‑hand thread gauge?
The tool is specified as a right‑hand thread gauge for standard UNF applications and is intended to check matching internal threads.

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