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iEngineer

iEngineer is the most comprehensive database of screw/bolt information that you can find anywhere.
Category Price Seller Device
Reference Free Perfectly Simple Apps LLC iPhone, iPad, iPod

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]

Reviews

This is a great app that has almost every thread I need.
FoxyJosh

The only thing I’d like to see added is specs for NPT (tapered pipe threads)


Awesome
??⚙️??⛓

You have an awesome app there for a farmer like me I’ve been dreaming of something like this. Great Job!!! Thanks for this free service.


Great resource.
Cat3612

This app has gotten myself and subordinates out of numerous tight spots when torque was not listed in the governing documents. Really easy to use, great teaching tool. I have been using this app for years, and it has yet to let me down when I needed information. Enjoy the white lettering on black background, really easy to see in various lighting conditions (even when the iPhone is in a sealed plastic bag, protection from seawater spray). Fantastic app.


Metric screws
nèlie

Why there is no dimensions available for this. I paid $2 for this app- totally disappointing.


My Go-To App for Fasteners!
brANDonm00n

This app is excellent! I use it all the time in both design and fabrication. I’m not an Engineer by trade, but I am a registered Architect that routinely fabricates steel and wood elements within my buildings which involves structural calculations, and this app is a HUGE time saver! Please update the UI for iPhone X and newer though. Thank you and keep up the good work!


Works great
fejiugewghhjtrf

I have had it for a while and works every time


Excellent App
Jimmy Zyzzerman

This is the sort of reference app I've been looking for! Easy to use and good data. Would be great if the added pipe tap data and AN fitting data in an update. Also a better name for the app would be something like "Thread Ref". This said, still a great app and glad I found it.


Like this app
BubbleBoyFighter

Very handy for selecting fasteners when planning a project or buying them.


Nice
Bad hippie

Very nice app use it everyday as a reference have not found any info in this app that is not correct have had for a year now never had a crash or any problems. Find it very easy to get around in the app and the info is very handy to find


Comprehensive, easy to use
davealey

I'm impressed with this app. I needed a quick reference for screw sizes, and got that and lots more in an easy-to-use format. Recommended torque values, strength in dingle and double shear, head dimensions are there, for inch and metric screws in lots of standards. Very nice!


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