I post these WIP's to get input, and alternative technques, so I appreciate your feedback, as I'm sure other do as well.  The reason I didn't elaborate on the process of my screws further is because of the technique I used to make them are rather specific to some tools in 3dsmax.  It's not actually a standard edge extrusion which created the threads, although you could do it that way too, but using the loft compound object in 3dsmax, the threads were automatically beveled out of the loft object from a spline profile.  It's a max-specific operation, so I didn't get into much detail about that.  I'm thinking about doing more screws, using a more standard technique.

I see what you mean about the crisp edge of the threads in your example, though.  I have added a couple extra loops to my threads to get that crisp edge, since posting the last screengrabs. I'll post another shot of it when I get a chance.  Meanwhile, can you post a wire-shaded version of your screengrab, so we can see the underlying topology?  I love how the shaded version looks.  Great work. 

BTW, your corkscrew on DA looks like a fantastic model.

______________________________________

My Store
My Free Models
My Video Tutorials
My CG Animations
Instagram: @luxxeon3d
Facebook: https://www.facebook.com/luxxeon