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Thread Gauge

Thread Plug Gauge

Thread Plug gauges are precision tools used to measure, inspect, or verify the dimensions of threaded components such as bolts, nuts, screws, and tapped holes. They play a crucial role in ensuring the accuracy and quality of threaded parts during manufacturing and assembly processes. Thread gauges come in various types, each designed for specific purposes and applications.

These gauges are used to check the accuracy and conformance of internal threads in drilled or tapped holes. They consist of cylindrical rods with external threads that match the specifications of the internal threads being checked. Thread plug gauges are available in "Go" and "No-go" varieties, with the go gauge verifying proper thread size and pitch, while the no-go gauge ensures that the threaded hole does not exceed the maximum allowable tolerance.


  • Accuracy: With proper calibration and handling, these gauges offer precise measurements, ensuring the quality and consistency of manufactured parts.
  • Material: OHNS
  • Surface Treatment: Blackodising.
  • Hardness: 58 -62 HRC.

Thread Ring Gauge

Thread ring gauges are typically used in manufacturing and quality control processes to ensure that threaded parts meet specific standards and tolerances. A thread ring gauge is a type of gauge used to check the accuracy and precision of threaded components, such as screws, bolts, or nuts. It consists of a metal ring with internal threads that match the thread pitch, diameter, and profile of the component being tested.

Usage: To check the threaded component, it is screwed into the thread ring gauge until it reaches the point where the gauge stops. If the component screws in smoothly and snugly without excessive play or resistance, it indicates that the threads are within acceptable tolerances. If there are any issues with the fit, it suggests that the threads may be out of specification.

Types: Thread ring gauges come in various types depending on the type of thread being measured, such as metric, inch, unified, etc. They also come in different classes of fit, indicating the level of tolerance permissible for the threaded component to pass the gauge.

  • Accuracy: With proper calibration and handling, these gauges offer precise measurements, ensuring the quality and consistency of manufactured parts.
  • Material: OHNS
  • Surface Treatment:Blackodising.
  • Hardness: 58 -62 HRC.

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