The JBO Thread Plug Gauge is a right-hand, medium-class plug gauge sized for 5/16 x 18 threads. This go/no-go tool enables quick, definitive checks to confirm threaded holes meet the specified dimensions and thread standards, supporting reliable fitment in manufacturing, automotive, and aerospace applications.

• Go/No-Go quick checks: Instantly distinguish conforming from non-conforming threads to speed inspections and minimize downtime.
• Precise 5/16 x 18 right-hand, medium class: Engineered to exact dimensions for repeatable, reliable hole checks across batches.
• Rugged, user-friendly design: Knurled grip and durable finish provide secure handling in busy workshops for consistent use.

Using the JBO Thread Plug Gauge streamlines threaded-hole inspection by delivering clear pass/fail results with a single check, reducing rework and downtime. Its precise dimensions and durable construction help maintain consistent thread quality across parts, accelerate QA workflows, and give teams the confidence that assemblies will fit correctly the first time.