JBO Thread Ring Gauge (Go/NoGo) - NPT - Right Hand - 1/4 x 18

The JBO Thread Ring Gauge (Go/NoGo) for NPT right-hand threads in the 1/4 x 18 size is a purpose-built inspection tool designed to verify threaded pipe connections quickly and reliably. It’s ideal for plumbers, pipefitters, oil and gas technicians, and manufacturing QA teams who need fast, trustworthy thread checks. The Go/NoGo design helps you determine whether threads are within specification, ensuring proper fit and sealing.

With meticulous design and precise dimensions, this gauge makes it easy to verify conformity during routine assembly, maintenance, or incoming inspection. The result is faster, more reliable threaded connections that meet standard NPT requirements and reduce the risk of leaks or misthreads.

• Go/NoGo Design for Quick Conformity Checks: Rapidly determine if a thread meets spec—use the go side to confirm acceptance and the no-go side to catch over- or under-tolerance threads, speeding inspections and reducing rework.
• NPT Right-Hand 1/4 x 18 Compatibility: Precisely matched to standard 1/4 x 18 NPT threads, delivering accurate, repeatable checks with common fittings and supporting consistent quality across projects.
• Precise, Repeatable Measurements: Tight tolerances and careful fabrication deliver dependable results across multiple inspections, helping you maintain tight control of threaded assemblies and reduce variability.

Using the JBO Thread Ring Gauge in your workflow helps streamline QC, ensure proper fit and sealing, and deliver reliable results across fieldwork and production runs. Its clear go/no-go indicators support confident decisions, minimize downtime, and strengthen overall threading accuracy in demanding applications.