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About iEngineer

iEngineer is the most comprehensive database of screw/bolt information that you can find anywhere. US screws: -93 different screws from #0 to 4” -Dimensions for 9 standard head styles -74 material grades including SAE, ASTM, and other materials Metric Screws (available as in-app purchase): -210 different metric screws from M1.0 to M100 -Dimensions for 10 standard head styles for ISO, DIN, BS, and ANSI standards where available -86 material grades including 12 additional metric grades, SAE, ASTM, and other materials Displayed values for both the US and Metric screws include: -Standard dimensions -Tap sizes -Clearance hole sizes -Material strength -Recommended torque values -Clamp force -Shear force -Head markings display -3D model of head type -Standard dimensions of head type Other features: -Drill chart with 523 drill bit sizes -Fraction chart -Copy and paste data values -Fast and easy unit conversion -Ability to show/hide material grades in the interface so you only see what is relevant to you If you have any questions please contact us at [email protected]

Ratings & reviews

4.6

198 ratings

5 ★ 75% 4 ★ 15% 3 ★ 4% 2 ★ 3% 1 ★ 4%

What’s new

Version 3.0 · Updated October 15, 2026

- Update for larger iPhone Displays - iPhone Duo support

App privacy

The developer, Perfectly Simple Apps LLC, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to iEngineer

Looking for apps like iEngineer? Here are 6 similar apps on the App Store. The highest rated is EE ToolKit (4.7/5), and all 6 are free to download.

iEngineer vs. alternatives
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