Spi 34-485-3 Threaded Ring Gage M10x1.50 Class 6G Go

Product Description

The SPI 34-485-3 is a single-ring threaded ring gage machined for M10 x 1.50 metric threads and classified to Class 6G tolerance. It is a Go-type gage, used to verify that an externally threaded part falls within the acceptable lower limit of thread tolerance. Manufactured from Oil Hardened Non-Shrinking Steel (OHNS), the gage maintains dimensional stability under repeated inspection use. An NPL Traceability Certification is included, supporting quality management systems that require documented measurement traceability. Machinists, quality control inspectors, and tool-room technicians use this gage as part of incoming inspection, in-process control, or final verification routines on threaded fasteners and components.

This gage is suited for production and inspection environments where M10 x 1.50 metric-pitch external threads must be verified to Class 6G tolerance specifications. Class 6G is the most common general-purpose tolerance class for metric fastener threads and is widely specified in manufacturing, automotive, and industrial assembly applications. The Go ring gage checks that the thread form, pitch diameter, and lead fall within the acceptable high-material condition limit, confirming that a conforming mating part will assemble correctly.

Key Features

• Go-type ring gage confirms externally threaded parts meet the acceptable high-material limit for Class 6G tolerance
• M10 x 1.50 metric thread size covers one of the most common general-purpose metric fastener threads
• Oil Hardened Non-Shrinking Steel (OHNS) construction provides wear resistance and long service life in repetitive inspection use
• NPL Traceability Certification included for use in ISO-compliant and quality-system-controlled inspection environments
• Single-ring design for dedicated Go-function gauging

Compatibility

Designed for inspection of externally threaded metric fasteners and components with an M10 x 1.50 thread form produced to Class 6G tolerance requirements.

Installation Notes

Threaded ring gages are handled and used by quality control inspectors and machinists, not installed in a mechanical system. Keep the gage clean and lightly oiled when not in use to prevent corrosion and preserve calibration. Do not force the gage onto a thread; resistance during Go-gage application indicates a non-conforming part, not a stuck gage. Store in a protective case away from heat sources and heavy equipment to prevent distortion that would affect accuracy.