If you need a torque value, this is the app
Simple, easy to use, accurate,
Archived App (Last seen on 4 Jul 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
This practical tool provides instant torque estimates for bolted joints, designed for installers and engineers. Easily select bolt size and grade to get reliable torque values without complex charts or apps. It's ideal for on-site work, even without an internet connection.
✓Select bolt thread size and grade
✓Adjust K-factor and tightening percentage
✓Outputs torque for target clamp load
✓Works offline
✓Designed for installers
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What's New in BoltCalcSimple
3.0
August 12, 2025
Added a new admin-only feature that estimates clamp load based on a given torque and K factor.
User reviews
FAQ
What is BoltCalcSimple used for?
BoltCalcSimple is a field torque calculator designed to estimate the torque required for bolted joints to achieve a target clamp load. It simplifies the process by allowing users to select bolt size and grade for instant, reliable estimates.
Is BoltCalcSimple suitable for engineers?
Yes, while designed with installers in mind, BoltCalcSimple is also useful for engineers. It provides industry-standard formulas and allows for adjustments to K-factor and tightening percentage, offering a practical tool for on-site calculations.
Does BoltCalcSimple require an internet connection?
No, BoltCalcSimple works offline, making it perfect for job sites or field locations where internet signal may be unreliable or unavailable. You can get torque estimates anywhere, anytime.
How accurate are the torque estimates from BoltCalcSimple?
The app provides reliable torque estimates based on industry-standard formulas. It aims to help users get the correct torque settings the first time, every time, by simplifying complex calculations.
What information do I need to use BoltCalcSimple?
To use BoltCalcSimple, you primarily need to select the bolt thread size and grade. You can also adjust the K-factor and tightening percentage for more specific calculations.
Does BoltCalcSimple have ads?
No, BoltCalcSimple is ad-free, ensuring a clean and uninterrupted user experience while performing calculations.
What devices is BoltCalcSimple available on?
BoltCalcSimple is available on iPhone and iPad devices. It is designed for users who need a portable and accessible calculation tool.
How often is BoltCalcSimple updated?
The latest version of BoltCalcSimple is 3.0, which was last updated on August 12, 2025. This indicates ongoing development and support for the application.