Spi 34-513-2 Threaded Ring Gage M27x2 Class 6G Go

Product Description

The SPI 34-513-2 is a single-ring threaded ring gage used to inspect external metric threads for dimensional conformance. Manufactured from Oil Hardened Non-Shrinking Steel (OHNS), this Go gage checks that a threaded workpiece falls within the acceptable lower tolerance boundary for Class 6G fits. The M27 x 2.00 thread form and 6G tolerance classification make this gage suitable for medium-precision metric fastener and assembly work. Each unit ships with an NPL Traceability Certification, supporting quality management and inspection documentation requirements in regulated manufacturing environments.

This gage is used in machine shops, production floors, and inspection departments where metric external threads must be verified before assembly. It is appropriate for incoming inspection, in-process quality control, and final inspection of threaded components. The Go function confirms that a mating part will assemble correctly, screening out undersized or misformed threads. Single-ring construction makes handling and storage straightforward in high-volume inspection settings.

Key Features

• Go-class gage verifies external thread assembly acceptance for M27 x 2.00 metric threads
• Class 6G tolerance classification for medium-precision metric thread inspection
• Oil Hardened Non-Shrinking Steel (OHNS) construction for wear resistance and dimensional stability
• NPL Traceability Certification included for quality system compliance and calibration recordkeeping
• Single-ring design for straightforward handling in inspection and production environments

Compatibility

Designed for inspection of external M27 x 2.00 metric threads conforming to Class 6G tolerance specifications. Compatible with any workpiece requiring verification against this thread form and tolerance class.

Installation Notes

Threaded ring gages are used by quality technicians and machinists and do not require mechanical installation. Store gages in a clean, dry environment and apply a light coat of rust-preventive oil when not in use. Handle with care to avoid impacts that could alter calibration. Re-certification intervals should follow your facility quality plan and applicable metrology standards.