Spi 37-110-4 Plug Thread Gage M6x1 6H Class Go

Product Description

The SPI 37-110-4 is a single-end Go plug thread gage designed to verify that internally threaded components meet M6x1 thread specifications at the 6H tolerance class. The gage checks that a threaded hole is within the acceptable upper limit of the tolerance range, confirming proper fit before assembly. Handle is not included and must be sourced separately. Traceability certification is provided to ANSI standards with NIST traceability, making this gage suitable for quality control environments where documentation is required. Machinists, tool-room technicians, and quality inspection personnel are the primary users of this type of gage.

This plug thread gage is used in manufacturing and inspection settings where M6x1 metric threads must be verified for conformance. It is appropriate for both production floor inspection and incoming goods inspection of tapped holes in metal components. The single-end Go configuration is used to confirm that a threaded feature accepts the gage freely, indicating the thread is not undersize or otherwise outside the acceptable Go limit. A separate No-Go gage would be required for complete thread verification.

Key Features

• Go gage configuration checks that threaded holes meet the M6x1 minimum acceptance threshold
• 6H tolerance class suits standard internal metric thread inspection requirements
• Single-end design for dedicated Go inspection without a combined handle setup
• ANSI traceability certification with NIST standards included for quality documentation
• Handle not included, allowing use with a separately chosen gage handle
• Compact dimensions support use in confined inspection setups

Compatibility

Designed for inspection of M6x1 internally threaded components classified to the 6H tolerance standard. A compatible gage handle must be sourced separately to operate this plug gage.

Installation Notes

This gage is installed and operated by qualified machinists or inspection technicians following standard thread gaging procedures. The gage member should be inserted into the threaded hole by hand with no forced torque applied. Do not use wrenches, pliers, or power tools to drive a plug thread gage. Store the gage in a protective case away from abrasive surfaces to maintain calibration integrity.