7/8" Thread Ring Gauge UNC 9 TPI, ANSI B1.1/B1.2, Hardened Gauging Steel - Metav IndustryLine

Benefit from a precise, standards‑compliant gauge that combines hardened gauge steel, ANSI/ASME conformity and a clear tolerance class for reliable in‑process verification; order the gauge directly via Metav Werkzeuge or consult the Metav specialists for application advice.

Thread plug gauge UNC 7/8 × 9 ANSI/ASME B1.1 / 2B — Metav IndustryLine

Thread plug gauge UNC 7/8 × 9 ANSI/ASME B1.1 / 2B provides a compact, hardwearing solution for internal UNC thread inspection across production and incoming inspection tasks

• UNC 7/8 × 9 thread to ANSI B1.1 standard
• Tolerance class 2B for internal thread verification
• Hardened gauge steel for extended service life
• Compact mass 0.3 kg for easy handling

Ensure repeatable, standards‑based thread checks on the shop floor

The thread plug gauge is designed for straightforward verification of internal UNC threads, giving production engineers and quality inspectors a quick go/no‑go control. With its designation UNC 7/8 × 9 and compliance to ANSI/ASME B1.1, the gauge provides a measurable acceptance criterion that replaces subjective assessments. Using a dedicated gauge reduces rework and speeds up process control because accepted parts pass a single, unequivocal dimensional test rather than a lengthy manual measurement routine.

Durable construction that supports continuous inspection cycles

Manufactured from hardened gauge steel, the tool resists wear and maintains the functional limits required for repeated use. The 2B tolerance class ensures the gauge represents the nominal allowances for internal threads, while the 9 tpi pitch matches the UNC 7/8 specification. The low mass of 0.3 kg aids handling and reduces operator fatigue during frequent checks. Together, these attributes mean fewer replacements and consistent inspection accuracy over many production cycles, contributing to lower lifetime costs.

Integrates with quality routines and simplifies documentation

As a Go/No‑Go inspection tool, the gauge accelerates decision making in incoming inspection, machining and assembly operations. Its clear pass/fail function supports traceable control plans and simplifies operator training: record the use of the gauge in audit protocols to demonstrate conformity to customer or regulatory requirements. The compact design and industry standard labelling make it easy to include in inspection kits and fixtures, improving workflow efficiency without complex setup.

Select the Metav IndustryLine thread plug gauge for robust, standards‑compliant internal thread control and contact Metav Werkzeuge in Emmerich for delivery and application guidance (+49 2822 7131930, info@metav-werkzeuge.com)

Technical data

• SKU: M315.928
• GTIN: 4054469179735
• Manufacturer: Metav IndustryLine
• Category: Gauges; Thread plug gauge

Facts

• Size: 7/8"
• Thread: UNC 7/8 × 9 (9 tpi)
• Tolerance class: 2B
• Mass: 0.3 kg
• Standard: ANSI/ASME B1.1/B1.2

Special features

• Material: hardened gauge steel
• Use: internal thread verification
• Tariff number: 90173000

FAQ

What does tolerance class 2B indicate for this gauge?
Tolerance class 2B designates the standard internal thread tolerance band; the Thread plug gauge UNC 7/8 × 9 ANSI/ASME B1.1 / 2B represents the acceptance limits for internal UNC threads in that class.

Which standard does the gauge follow?
The gauge is manufactured to comply with ANSI/ASME B1.1/B1.2, covering Unified Inch screw threads including UNC series, ensuring compatibility with common engineering specifications.

Is this gauge suitable for production use or only for inspection labs?
The hardened construction and clear Go/No‑Go function make the plug gauge suitable for both shop‑floor production checks and laboratory verification; Metav IndustryLine gauges are intended for routine process control.

What thread form and pitch are checked by this tool?
This plug gauge checks a UNC 7/8 × 9 internal thread, corresponding to a 7/8‑inch major diameter with 9 threads per inch (tpi).

What is the product identifier for ordering or documentation?
Use SKU M315.928 and the designation Thread plug gauge UNC 7/8 × 9 ANSI/ASME B1.1 / 2B when ordering or referencing the item in inspection records.

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