Here I will tell you about 3dsmax 3d model nuts studio tutorial. I have used following techniques in this 3ds max tutorial. Editable poly and shell modifier techniques.
This will be the base we can copy several times to get the whole bolt. Duplicate it once and move it 1.52 in the z-axis. You'll see that the duplicate lands exactly where the other stops.... Why is that? Because the height of the helix is 1.52 :)