Thread Calculator is a free iPhone app developed by GSR Gustav Stursberg GmbH, a renowned manufacturer with 130 years of experience in thread cutting tools. This business and productivity app offers a comprehensive set of calculators for thread cutting, cold forming, and thread repair. Users can easily determine the tap hole size for threading or select the appropriate bolt by inputting the thread type, nominal size, and pitch. The app eliminates the need to search through tables for thread dimensions, saving valuable time for precision projects.

GSR Gustav Stursberg GmbH ensures top-quality tools, including taps, twist drills, round dies, and tool holders, manufactured with precision in their own facilities. With a commitment to consistent quality control, users can rely on the app's accuracy for all their thread cutting needs. As the app continues to evolve, users can expect new features to enhance their thread cutting experience.