The JBO Thread Plug Gauge is a UNEF Go-No/Go gauge built for right-hand threads in size 1 x 20, class 2B. It’s a compact, reliable tool designed to quickly verify threaded holes and components meet the UNEF 20 TPI standard. Whether you’re in manufacturing, automotive, aerospace, or a busy workshop, this gauge helps inspectors confirm conformity with a simple pass/fail check just by trying the go and no-go ends.

Its go/no-go design delivers fast, unambiguous results, reducing inspection time and minimizing guesswork so you can keep production moving. The gauge is purpose-built to align with Unified thread standards, helping you avoid mismatches and rework by ensuring only correctly threaded parts proceed to assembly or use.

• Go/No-Go Dual-Ended Design: Enables rapid pass/fail checks in a single tool, speeding inspections and eliminating hesitation or second-guessing.
• UNEF 20 TPI, Right-Hand, 2B Class: Precisely matches the specified thread standard and tolerance, delivering consistent, reliable measurements for quality control and interchangeability.
• Ergonomic Knurled Grip & Durable Construction: The textured body provides a secure, comfortable hold for all-day use, while robust materials stand up to daily shop wear and tear.

By integrating precise sizing with a straightforward go/no-go check, this gauge helps you streamline quality control, reduce downtime, and maintain consistent thread integrity across parts and assemblies. It’s a practical, dependable addition to any inspection or production workflow.