What is another name for a DA bolt?

• A. Carriage Bolt
• B. All Thread
• C. Eye Bolt
• D. Hex Bolt

Answer: (B)

The idea here is that a DA bolt is described by how its threads run. A DA bolt is threaded along its entire length, which is exactly what an all-thread bolt is named for: the full-length threading lets you run nuts all the way along the bolt and adjust the setup easily. The other bolt types have distinct features that aren’t fully threaded: a carriage bolt has a smooth shank and a square under the head, so it isn’t meant to be threaded along the whole length; an eye bolt ends in a loop; a hex bolt has a hexagonal head. So the best match for a DA bolt is the all-thread bolt, since it shares the characteristic of continuous threading along the entire length.