I gave it 7. I read it exactly like you intended. The blur is a bit distracting, but I saw the point in it. I like B&W and the crop itself. I like the roughness of the picture. I don't think picture has to be razor sharp to be good. To me it is a good picture which conveys the challenge theme in a clever and unusual way.
Almost made the brown ribbon with this one. The score was not unexpected. I had an idea, but was not able to get it across visually.
The graininess was intentionally induced. An artistic effort that was probably not obvious enough, so just looked flawed. The blur of the screwdriver was not intentional at the time of the shot, but I felt it looked like someone struggling to reach the screw.
Here's the (resized) out of the camera shot. If anyone can suggest how to make it better, I am interested in the feedback:
Yep, don't you hate that!? It's up there with the bolt that can only be turned an 1/8th of a turn at a time!!
I like the blur on the screw driver that suggests he's trying to get there, but not quite! : )