Spi 34-370-7 Plug Thread Gage 10-32 3B Double End

Product Description

The SPI 34-370-7 is a double-end plug thread gage used to verify internal thread conformance to 10-32 thread specifications at 3B class tolerance. One end carries the Go member and the other carries the No Go member, allowing a technician to confirm both the minimum and maximum thread tolerance in a single tool. The gage ships with a handle included and carries NIST traceability certification, making it suitable for documented quality-control programs on the shop floor or in the field. Steel construction provides durability across repeated gauge cycles.

This plug thread gage is used wherever 10-32 internal threads must be verified to 3B class tolerance. Typical applications include inspection of threaded holes in machined components, fastener-receiving bores in assemblies, and production-line thread verification in manufacturing and fabrication environments. The Go No Go configuration is standard practice in dimensional inspection workflows across aerospace, mechanical, and general industrial trades.

Key Features

• Double-end design with Go and No Go members on a single tool for complete tolerance verification
• Calibrated to 10-32 thread size at 3B class tolerance
• NIST traceability certification included for documented quality and compliance programs
• Handle included — ready to use out of the box
• Steel construction for long service life under repeated use

Compatibility

Designed for inspection of 10-32 internal threads manufactured to 3B class tolerance per ANSI/ASME Unified thread standards.

Installation Notes

Thread gages are inspection tools and do not require installation. Handling should be limited to qualified inspection or quality-control personnel. Keep the gage clean and lightly oiled when not in use to prevent corrosion and protect calibration integrity. Do not force the Go member through a thread form that resists entry, as this can damage the gage and invalidate the inspection result.