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Any AttachingDevice that is designed to mate with a MechanicalNut thereby Attaching two Objects. This includes nuts with hexagonal heads that must be held or turned by a Wrench or Screwdriver as well as those that have round heads but some non-round feature that is designed to catch on the material being attached, and therefore prevent rotation, as in a carriage bolt. Bolts are distinguished from Screws in that screws must create a mating surface by gouging a thread into material, whereas bolts are designed to slip through a hole and are held in place by a nut at the opposite end from the head of the bolt. This includes threaded rods that may have nuts as spacers for freely rotating items.
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