Mitutoyo 950-257 Acme Thread Screw Checker 2-10 in

Product Description

The MITUTOYO 950-257 is an Acme thread screw checker designed to verify thread form and pitch on Acme-profile threaded fasteners and lead screws. It covers a screw size range of 2 inches to 10 inches and a thread pitch range of 1 to 10 threads per inch (TPI). Machinists, maintenance technicians, and quality control inspectors use this tool to quickly confirm that Acme threads meet dimensional standards before assembly or acceptance. The checker provides a fast, go/no-go style verification method without the need for complex measurement setups.

This screw checker is suited for industrial and manufacturing environments where Acme threads are common, including applications involving power transmission screws, lead screws, and jack screws. It is appropriate for use in machine shops, production floors, and maintenance departments that work with large-diameter threaded components. The 2-inch to 10-inch screw size range and 1 to 10 TPI coverage make it relevant for a broad range of heavy-duty threaded assemblies.

Key Features

• Acme thread form verification across 1 to 10 TPI pitch range
• Covers screw diameters from 2 inches to 10 inches
• Designed for fast, reliable thread acceptance checks
• Compact and portable at 0.5 pounds
• Single-unit packaging for individual bench or field use

Compatibility

Designed for use with Acme-profile threaded fasteners and lead screws ranging from 2 inches to 10 inches in diameter with thread pitches between 1 and 10 TPI.

Installation Notes

No power source or special tools are required to use this thread checker. Ensure the screw threads are clean and free of chips or debris before checking. This tool is handled by the technician or inspector and does not require mounting or fixturing. Follow your facility or quality plan procedures for thread acceptance criteria when using go/no-go style gauging tools.