Hi sorry i forgot to post my ref, my apoligies, but this is what i did:
In paint i got the picture reduced the sized then got the pen,went over the bolts,then did the dithering i am sorry i keep forgeting to mention my reference pictures,but i am sure your allowed to go over the image i have seen it before.
I FOUND IT!!!
There is a difference between referencing and copying. You should know that already.