Spi 34-368-1 Plug Thread Gage 10-24 3B Double End Go No Go

Product Description

The SPI 34-368-1 is a double-end plug thread gage used to verify internal threads to the 10-24 unified coarse thread standard. One end carries the Go member and the other carries the No Go member, allowing a technician to confirm both the minimum and maximum material conditions in a single tool. The gage is classified to 3B tolerance, which applies to standard-fit internal threads used across general mechanical assembly. A handle is included. The body is steel construction. This tool is used by machinists, quality control inspectors, and precision assembly technicians working to NIST-traceable standards.

The SPI 34-368-1 is suited for incoming inspection, in-process verification, and final quality checks on tapped holes requiring a 10-24 thread form. It is appropriate for use in machine shops, manufacturing facilities, maintenance departments, and any production environment where threaded fastener integrity must be documented. The included NIST traceability certification supports use in regulated or audited quality systems. Both Go and No Go members are contained in the same double-end configuration, reducing the number of individual tools needed at the inspection station.

Key Features

• Double-end design integrates Go and No Go members in one tool
• Manufactured to 3B class tolerance for standard internal thread fits
• Covers 10-24 unified coarse thread specification
• NIST traceability certification included for use in documented quality systems
• Steel construction for durability in shop environments
• Handle included — no separate purchase required

Compatibility

Designed for inspection of internal 10-24 unified coarse threads classified to 3B tolerance in standard mechanical assemblies and tapped components.

Installation Notes

This gage is used by quality control inspectors and machinists — not installed in a system. Before use, clean the tapped hole and gage members to remove chips, coolant, or debris that could affect the reading. Apply light hand pressure only when advancing the Go member; forcing the gage can damage the thread form or the gage itself. Do not use power tools to drive a thread gage.