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The SPI 34-493-7 is a single-ring threaded ring gage used to inspect external M14 x 2.00 metric threads to Class 6G tolerance. The Go gage confirms that a threaded workpiece falls within the acceptable upper limit of the tolerance band, allowing the part to pass inspection. Machined from Oil Hardened Non-Shrinking Steel (OHNS) for dimensional stability and wear resistance, this gage is suited for production floor inspection, incoming quality control, and tool-room verification work. An NPL Traceability Certification is included, supporting compliance with documented quality management systems.
This gage is used in manufacturing, machining, and fabrication environments where M14 x 2.00 metric fasteners, threaded components, or tapped features must be verified against Class 6G external thread standards. Typical users include machinists, quality control inspectors, and tool-room technicians working in production settings that require documented thread inspection. The included NPL traceability certificate makes this gage suitable for use in ISO 9001 and similar quality programs that require calibrated measurement equipment.
Designed for inspection of external M14 x 2.00 metric Class 6G threads on machined parts, fasteners, and threaded assemblies conforming to metric coarse-pitch thread standards.
Thread ring gages are handled and applied by quality control inspectors or machinists and do not require permanent installation. Store the gage in its protective case when not in use to prevent nicks or dimensional changes. Do not force the gage onto an oversized thread, as this can damage the gage lands and compromise measurement accuracy. Verify calibration status and traceability documentation before use in a controlled quality program.
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