I gotta know how you pulled this off. What camera/lens/settings. Did you do it in Ps or is it all in camera?
The key to that shot is being close (close to the close-focus distance of the lens, so if this was shot with a 300mm lens then this would have been shot at maybe 20 feet, if it was shot with a 105mm lens, then maybe it was shot at 8 or 10 feet), nearly any semi-decent lens will have moderate bokeh at very close distances. Aside from that, the "rivets" (are they rivets?) are back-lit to add a little drama.
I was more interested in how the single rivet was completely sharp, but all adjacent rivets are extremely OOF. It seems like a very difficult shot to pull off. The bokeh is nice, but the DOF is....perfect.
The one rivet is sharp because this was shot at a wide f-stop with a long(er) focal length. That isolates the subject.
Forgot to include shot info. Here it is. "Time Is Running Out" Nikon D80 Nikon 55-200 VR DX Lens ISO 100 200mm f5.6 1/250 sec
Don't think I've posted any of these yet. "Bear" puppy. Bleach bypassed taffy pull. Cross-processed field. Cross-processed Tulsa. My 22-toed cat, Oskar. Extracted chlorophyll hit with UV light glows a deep red. And some ammo comparisons.