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 support@perfectlysimpleapps.com
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- Update for larger iPhone Displays
- iPhone Duo support
Version 3.0
The developer, Perfectly Simple Apps LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
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Information
Size
12.3 MB
Category
Reference
Compatibility
Requires iOS 26.0 or later.
iPhone Requires iOS 26.0 or later.
iPad Requires iPadOS 26.0 or later.
Mac Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
