Nuts N Bolts

by JamieLaing, published

Nuts N Bolts by JamieLaing Mar 12, 2013

Thing Info

4043Views 1468Downloads Found in Machine Tools
Report Thing


This is some STL files and a parameterized model generation tool using Autodesk Inventor. It's set up so the dimensions for the nuts and bolts are stored in an Excel spreadsheet, and if you edit the spreadsheet, the model(s) get updated accordingly.


The zip file contains the Inventor part files and the spreadsheet, which all need to be kept in the same folder for the parameter changes to flow.

The threads are based on the ISO standards found here (http://en.wikipedia.org/wiki/ISO_metric_screw_thread) with a couple of variations; the tooth pitch isn't restricted to 30 degrees as you can change this in the Excel file, and the tolerance is settable in the spreadsheet as well, so the prints "just work" the first time you print them.

Note that the tolerance setting is subtracted from the nut, and the bolt is printed unaltered.

More from Machine Tools

view more

Thing Info

4043Views 1468Downloads Found in Machine Tools
Report Thing


Liked By

View All


Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

Sounds like you've done a great job here. Something that I really wanted. Unfortunately I got this error.

 Database schema for file

C:\MyFolder\Bolt1.ipt is
(17.0 (Build 170095000, 95)), which is newer than this version (16.0 SP2
(Build 160219200, 219)) of the software

I looked up how to update my libraries but it said they were all Read only or up to date. I guess it's because I have student version.

Anyway thanks for sharing.


Hi Owen, I'm really sorry to hear about this, too bad a single version number difference invalidates the file. I'll take a look and see if there is anything I can do to help.

Thanks Jamie.
Actually you could help by letting me know a few of the formulas in your 2 D sketch there. I started doing up a copy of your sketch and using your spreadsheet for Parameters. I could work out some like the cut angle but not others.
Thanks again Jamie

No problem Owen, I just uploaded a new image that shows all the parameters in the IPT file including the ones that came from the spreadsheet. Just curious, I'm also going to upload the IPT file for a thing I just uploaded named "Screwball" and I'm wondering if your version of Inventor can open that? The Screwball part does not use a spreadsheet and I'm wondering if that might be what is jamming up your version.

I tried the Screw Ball part Jamie but same message. Looks like a good model though. Never mind. The pic of your parameters looks good and I should be able to achieve creating the this part file with that so thanks again.