#bolt.screw  a screw that screws into a nut to form a fastener
  supertype:  screw  a fastener with a tapered threaded shank and a slotted head
  subtype:  carriage_bolt  expansion_bolt  kingbolt  machine_bolt  stove_bolt
  part:  head.projection  bolt_shank
  part of:  nut_and_bolt__nutandbolt  a fastener made by screwing a nut onto a threaded bolt

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