How do you draw a 3D bolt in AutoCAD 2006?

To draw a 3D bolt in AutoCAD 2006, first, create the bolt's cylindrical body using the "Cylinder" command, specifying the diameter and height. Next, use the "Extrude" command to create the bolt head by drawing a circle for the head base and extruding it to the desired height. For the threaded part, use the "Helix" command to create a helical shape along the cylindrical body, then apply the "Sweep" command with a circular profile to represent the threads. Finally, refine the model by adjusting dimensions and using the "Union" command to combine all parts into a single solid.