Holes & Hole Notes

There’s lots of different types of holes…. how do I know the difference when reading a drawing?

Here the information on the holes. Watch the video below and answer the questions

HOLE NOTE QUESTIONS

Answer the questions below by copying and pasting them into a google doc. Submit the answers to your instructor.

1. What # hole will screw A fit into? If more than one list them all.

2. What # holes will screw B fit into? If more than one list them all.

3. What holes might a bolt fit into? If more than one list them all.

4. Name the holes:

   1. Hole #1 & 2 is a ____________________

   2. Hole #3 is a ____________________

   3. Hole #4 is a ____________________

      1. What might be the advantage for using this type of hole?

   4. Hole #5 is a ____________________

      1. What might be an advantage for using this type of hole?

   5. Hole #6 is a ____________________

Answer the questions using the picture above.

1. The Symbol “A” in the photo above means ________________

2. The Symbol “B” in the photo above means ________________

3. The Symbol “C” in the photo above means ________________

4. The Symbol “D” in the photo above means ________________

Answer the questions using the picture above.

1. What is the diameter of the bolt that goes into the threaded hole?

2. What does the “-18” in the photo above mean?

3. What does UNC mean? Explain fully.

4. What might a bolt or hole be if it is not UNC? What does it stand for?