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Which bolt is used in machine tool tables in which T-slots are cut to accommodate the T-heads ?

  • A.Countersunk- headed bolt
  • B.Hook bolt
  • C.Eye-bolt
  • D.T-headed bolt

Answer: D

Machine tool tables use the T-headed bolt.

Machine tool tables have T-shaped slots cut along them. The head of a T-bolt slides into the slot and is held under its lips, so the bolt can be positioned anywhere along the slot to clamp a workpiece or fixture, and the head cannot turn.

A countersunk-headed bolt sits flush in a conical recess, a hook bolt is used where a hole cannot be drilled through one of the parts, and an eye-bolt is used for lifting heavy machines. None of them is designed to locate in a T-slot.

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