Separate
Have you ever held fasteners such as these in your hand?
If so, you should be able to easily see how they don't match real world parts. Not even close!
Thread not modeled correctly in the nut. (see red)
Thread not terminated correctly on the cylinder and pitch incorrect (should be same distance root-to-root as crest-to-crest).
Please see whether dimesions are correct now.
As a counterpoint to JDMather - AutoCAD and verticals aren't as good at modeling complex geometry as Inventor and other tools, which are designed from the ground up for mechanical design. In the AutoCAD world we usually skip such low level details as actual physical threads (even Inventor kinda-sorta does that), and instead focus on more macro aspects of the design - for example total length of bolt, diameter, and how many.
But its still important to understand basic design concepts and terms such as UNC, pitch angle, and so on so the drawing has correct information.
----------------------------------
If you are going to fly by the seat of your pants, expect friction burns.
"I don't know" is the beginning of knowledge, not the end.
If you are going to fly by the seat of your pants, expect friction burns.
"I don't know" is the beginning of knowledge, not the end.