The JBO Thread Ring Gauge (GO) - UNS - Right Hand - 2A - 1 3/4 x 8 is a precision Go gauge designed to verify external thread diameters quickly and reliably. It’s an essential tool for inspectors, machinists, and quality teams working with UNS-standard fasteners, helping you confirm that each threaded component meets the required Go dimension before production moves forward.

Crafted for durability and long-lasting accuracy, this gauge features hardened steel construction that stands up to daily shop use. Its right-hand orientation, 2A class designation, and the exact 1 3/4 x 8 nominal size ensure compatibility with common external-thread applications while maintaining consistent performance across inspections.

• Accurate Go-thread verification: Quickly confirms external threads meet the Go dimension for UNS right-hand threads, reducing guesswork and speeding up quality checks.
• Durable hardened steel construction: Built to resist wear and maintain calibration in demanding environments, ensuring reliable measurements over time.
• Right-hand UNS 2A compatibility at 1 3/4 x 8: Specifically designed for standard external threads, providing dependable test results with commonly used fasteners.

This gauge helps you streamline inspections, minimize rework, and improve overall part conformity. By delivering consistent, go/no-go results, it supports faster workflows, better batch reliability, and confidence in every threaded connection you assemble or qualify.