Description
Thread Ring Gauge 7/16-20 UNF-2B (64-823039)
This precision-engineered thread ring gauge is an essential tool for quality control and verification of internal threads according to the UNF standard. The 7/16-20 UNF-2B thread ring gauge provides accurate inspection of thread tolerances, ensuring that threaded components meet the specifications for a 7/16-inch diameter with 20 threads per inch, UNF Class 2B. Its robust construction guarantees long-term precision and reliable measurement results in workshop and production environments.
Manufactured to strict standards, this thread ring gauge offers exact control of internal threads. It is designed to fit perfectly into correctly threaded holes and immediately identifies deviations outside the allowable tolerances. The gauge features a high surface finish that minimizes wear and optimizes measurement accuracy, making it a reliable tool for quality assurance in manufacturing processes.
- Precision-manufactured for exact verification of internal 7/16-20 UNF-2B threads
- Manufactured according to international standards for thread tolerances
- High surface finish for maximum durability and accuracy
- Designed for easy handling and efficient use
- Ideal for both inspection and verification of manufacturing processes
- Includes a calibration certificate confirming measurement accuracy
| Item Number | 64-823039 |
| Thread Type | UNF (Unified National Fine) |
| Thread Dimension | 7/16 inch |
| Thread Pitch | 20 threads per inch |
| Tolerance Class | 2B (internal) |
| Material | Hardened steel |
| Surface Treatment | Pre-chromed |
Applications:
- Quality control in the manufacturing industry
- Verification of threaded components in the automotive industry
- Aircraft maintenance and quality assurance
- Precision manufacturing of hydraulic components
- Inspection laboratories and measurement rooms
- Training in metrology and quality control
This high-quality thread ring gauge is a vital investment for anyone requiring precise inspection of internal UNF threads, ensuring compatibility and correct function in critical mechanical applications.

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