Osg 1500200400 Plug Thread Gage M5x0.8 6H Class

Product Description

The OSG 1500200400 is a double-end plug thread gage designed to verify M5x0.8 internal threads to the 6H tolerance class. One end carries the Go member and the opposite end carries the No Go member, allowing machinists and quality technicians to confirm both the minimum and maximum thread limits in a single tool. The gage is manufactured from high speed steel for wear resistance and dimensional stability under repeated use. A handle is included, so the tool is ready to deploy straight from the package without additional components.

This gage is used in precision machining, fabrication, and assembly inspection environments wherever M5x0.8 threaded holes must be verified against a 6H tolerance class. It is appropriate for incoming inspection, in-process quality checks, and final acceptance testing. Typical users include CNC machinists, toolroom technicians, and quality control inspectors working with metric fastener specifications.

Key Features

• Double-end design combines Go and No Go members in one tool for efficient thread verification
• Calibrated to M5x0.8 thread form at 6H tolerance class
• High speed steel construction provides wear resistance and long gage life
• Handle included — no separate handle purchase required
• Compact overall length of 3 inches keeps the tool manageable in tight inspection setups

Compatibility

Designed for use with M5x0.8 internally threaded workpieces held to the 6H tolerance class per standard metric thread specifications.

Installation Notes

Thread gages are inspection tools, not cutting tools — they should never be forced into a threaded hole. The Go member should pass through the full thread length under finger pressure only; the No Go member should not enter more than two turns. Clean threads and gage members before each use to prevent debris from causing false rejections. Store the gage in its case or a protected location to preserve calibration.