This section is from the book "Applied Science For Metal Workers", by William H. Dooley. Also available from Amazon: Applied Science For Metal Workers.
1. State the advantages and disadvantages of a cut nail. What causes a nail to split the wood?
Fig. 121. - Rivet Heads and Points.
2. State the advantages and disadvantages of a wire nail.
3. What advantage has a screw over a nail, as a fastening agent?
4. Explain the manufacture of screws.
5. What is a bolt?
6. Explain the construction of different screw threads.
7. What are the advantages and disadvantages of each? Draw sketches.
8. Define the following terms: thread, triple thread, pitch, lead, point, depth of a thread, root of thread, root diameter, pitch of screw, number of threads to the inch.
9. What are the uses of the different screw threads?
10. How is a thread placed in a hole?
11. What is a tap?
12. What are the standard hand-taps?
13. How would you determine the size of a tap drill for a thread?
 
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