
Archived App (Last seen on 25 Jun 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Thread Process Calculation Assistant is a professional calculation tool designed for machining, mold making, repair and assembly, and engineering design scenarios. By inputting common thread specifications, such as M10×1.5, M8×1.25, 1/4-20, and G1/4, it can quickly calculate the major diameter, pitch diameter, minor diameter, pitch, thread height, and recommended drilling diameter before tapping, helping users complete machining preparation and process recording more efficiently.
The application includes a variety of practical functions, including metric thread, imperial thread, and pipe thread calculations, quick reference for common specifications, material parameter suggestions, project record saving, process card generation and sharing, CSV data export, and standard library reference. Calculation results can be saved to projects for easy later querying, reuse, and organization.
Whether in workshop machining, on-site repair, or drawing verification and process preparation, this application can quickly provide clear and traceable thread parameters.
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What's New in Thread parameters
1.0
May 29, 2026



