An electronic version of the Engineering Slide Chart. Works just like an actual slide chart to provide a user-friendly interface. Includes technical information from many of the quick references that are commonly found in the work areas of designers, engineers, and machinists. All of this information is compiled for both Imperial (English) and Metric systems in a single screw chart App.

What's New

Version 2.0.1

Updated graphics

Ratings and Reviews

Engineering Apps

Excellent and Useful

Great 2015 new and improved App. Has Metric and Imperial screw data. Also includes new data on this version: clearance holes, wrench clearances, spring pins, drilled hole tolerances, miniature screws... Too much to list. The slide bar at the bottom moves data around smoothly. Clear graphics. I recommend this App. iPad version is almost as big as the plastic chart!


Updated at last!

this was an app I referred to everyday at work.

unfortunately after the iPhones started updating with larger screens it seemed like it was abandoned without an update.

Now it is installed back in my dock and os essential to my daily engineering tasks.

My only wish is that it could support the new split screen view. (actually I havent tested that though)

Thank you so much for revisiting.


Head size but no screw size?

I need to know the diameter of the head of a 5mm flat head screw. This chart will only gives the relationship of the height of the head to the diameter with no correlation to the nominal size of the screw. I don't know any supplier who sells screws by the head diameter so this chart Is pretty useless.


Great Innovations, Inc.
11.5 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2015


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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