Thread Chart app for iPhone and iPad

4.2 ( 272 ratings )

Utilities Reference
Developer: Igor Pivnyk

Free

Current version: 1.0, last update: 6 years ago
First release : 15 Jan 2018
App size: 10.67 Mb

App for machinists who need screw thread tolerances. Any ISO or UN thread can processed. Even such exotics as M12.3x1.34. Internal and external threads supported. Also calculation of tap holes provided. You do not need tolerance tables and wasting time for searching anymore. All you need is in your phone

Note: Due to rounding rules there may be some miscalculations (one or two microns). If precision is critical you should use appropriate standard.