Insize 1-8 UNC Size American Standard GO & NOGO Thread Ring Gage, 4121

Insize 1-8 UNC Size American Standard Thread Ring Gage, 4121-2A1N is a precision tool used to check the external threads on cylindrical parts to ensure they conform to American National Standards Institute (ANSI) or American Standard thread specifications. These gages play a crucial role in quality control, manufacturing, and maintenance processes, ensuring that threaded components meet specific size and pitch standards.

Key features and functions of the American Standard Thread Ring Gage:

Thread Measurement: Thread ring gages are designed to inspect the external threads of bolts, screws, and other cylindrical parts to ensure they conform to ANSI or American Standard thread specifications.

Go and No-Go Gauges: Similar to thread plug gages, thread ring gages come in two parts: a "Go" gauge and a "No-Go" gauge. The Go gauge checks if the threads are within the acceptable tolerance limits, while the No-Go gauge verifies that the threads do not exceed the maximum allowable tolerances.

Thread Pitch and Diameter: Thread ring gages are available in various sizes, thread pitches, and diameters, tailored to the specific threaded component being measured. They are manufactured to exact specifications and tolerances.

Precision Calibration: These gages are constructed with high precision and calibrated to meet the ANSI standards. Their accuracy is paramount, and they are often traceable to national or international metrology institutes.

Use in Manufacturing: Thread ring gages are commonly used in manufacturing processes, particularly for bolts, screws, and fasteners. They ensure that the threads on these components meet the required standards.

Go Gauge Verification: In the inspection process, the Go gauge is placed over the external threads of the component. If the gauge fits properly and without resistance, it verifies that the threads are within the acceptable tolerance range, indicating that the component is correctly threaded.

No-Go Gauge Verification: Subsequently, the No-Go gauge is applied to the external threads. If the No-Go gauge doesn't fit properly, it signifies that the threads are not within tolerance and do not exceed the maximum allowable limits for size and pitch.

Quality Control: Thread ring gages play a pivotal role in quality control, ensuring that threaded components meet the prescribed standards. This reduces the likelihood of thread failure, improving the performance and safety of assembled parts.

In summary, the American Standard Thread Ring Gage is an essential tool in industries where threaded components are manufactured and assembled. These gages are fundamental in verifying the quality and precision of external threads, ensuring that threaded connections in a wide range of applications, from construction to automotive, meet the necessary standards and function correctly. They are indispensable for quality assurance, safety, and compliance with ANSI or American Standard specifications.