Bolt Torque

$14.99

2.6for iPhone, iPad

Jochen Autrata

Developer

Dec 20, 2025

Update Date

Productivity

Category

App Store

Age Rating

Apps in this category do not contain restricted content.

Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Bolt Torque Screenshots

iPad

iPhone

About Bolt Torque

Take benefit from my engineering know how and calculate the max. tightening torque and preloads for many iso-metric and imperial screws.
Calculate the preloads and stresses and check the limits. All screw data are listed on a result page.

This app is a "must have" for all engineers in design departments.