Spi 34-507-4 Threaded Ring Gage M22 X 1.50 Class 6G Go

Product Description

The SPI 34-507-4 is a single-ring threaded ring gage designed to verify external metric threads to M22 x 1.50 dimensions at a Class 6G tolerance. This is the Go member of a Go/No-Go gage pair, used to confirm that a threaded workpiece falls within the acceptable tolerance envelope. Manufactured from Oil Hardened Non-Shrinking Steel (OHNS), the gage provides dimensional stability and wear resistance under repeated inspection cycles. An NPL Traceability Certification is included, supporting calibration documentation requirements in quality-controlled manufacturing and inspection environments. Machinists, quality technicians, and tool-room inspectors use this gage as part of in-process and final thread verification.

This gage is suited for use in production machining, contract manufacturing, aerospace, automotive, and general industrial settings where metric fastener threads must be validated to international standards. The M22 x 1.50 thread size is common in automotive and mechanical applications where fine-pitch metric threads are specified. The Class 6G classification aligns with ISO general-purpose external thread tolerances, making this gage appropriate for standard commercial and precision thread inspection programs.

Key Features

• Go ring gage confirms external M22 x 1.50 metric threads are within Class 6G tolerance
• Oil Hardened Non-Shrinking Steel (OHNS) construction for dimensional stability and extended service life
• NPL Traceability Certification included for calibration and quality system compliance
• Single-ring design for straightforward Go-member thread verification
• UNSPSC Code 41111619 for procurement and catalog classification

Compatibility

Designed for inspection of external metric threads sized M22 x 1.50 manufactured to Class 6G tolerance per ISO metric thread standards.

Installation Notes

Thread ring gages are handled and stored by quality and metrology personnel, not installed in mechanical systems. Keep the gage clean and lightly oiled when not in use to prevent corrosion. Do not force the gage onto a non-conforming thread, as this can damage the gage and produce false readings. Calibration intervals should follow your facility's quality management system requirements and applicable metrology standards.