AutoCAD 3D Bolt with Threads Tutorial. This tutorial shows how to draw a 3D bolt with Threads in AutoCAD 2010. M24 size 100 length 3D bolt is created with square threads of 60 length. How to create 3D threads is also shown in detail. Commands used in this tutorial are: Polygon, Extrude, Revolve, Pline, Pedit, Subtract, Presspull, Helix, Sweep, Chamfer. You can download the 3D bolt AutoCAD 2010 DWG file created in this tutorial.