How to design bolts in AutoCAD?


Bolt design has been introduced in AUTOCAD 2010 program as a result of some operations as seen below.
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Step 1:
We draw a hexagon into an apartment.
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Step 2:
Then we turn it into a solid.
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Step 3:
We do the necessary operations on the model.
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Step 4:
We are circling the bottom surface of our model.
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Step 5:
After this process, we convert the model to solid.
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Step 6:
We are spiraling to a point on the area where our model is.
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Step 7:
We make the spiral that we draw on the appropriate scale solid.
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Step 8:
And as a final step we place our spiral on our model.