1. Fastening Wood
Turn to Unit 10 on page 117

2. Objectives: Drive nails. Set screws. Use bolts. Use glue.
Assemble wood parts.

3. When fastening wood, a joint that is strong enough to do the job should be chosen. A joint is the union of two materials. Joints may be secured with nails, screws, bolts, or glue.

4. Butt Joint
…formed by placing two pieces end-to-end or edge-to-edge in line or at a 90 degree angle.

5. Lap joint
…formed by fastening wood face-to-face.

6. Dado joint.
…rectangular groove cut in a board. The end or edge of another board is then inserted in this groove.

7. Rabbet joint.
Similar to a dado except that is occurs at the end or edge of a board.

8. Miter joint.
…formed by cutting the ends of two pieces of lumber at 45 degree angles.

9. Dovetail joint…
Formed by interlocking parts of two pieces. This is the strongest and most difficult to make. They are only used in very expensive furniture.

10. Biscuit joints.
This is when thin oval pieces of wood are fitted into slots cut into the edge of boards that are being joined.

11. Tongue & groove
Used to join board the entire length of the board. Used commonly for cedar wall paneling.

12. Types of fasteners.
Nails, screws, bolts, glue.

13. Driving nails.
Look at page 119.

17. Pulling nails.
Page 120

18. Setting nails…
…driving the nail head below the surface with a punch.

19. Toe nailing…
To drive a nail at an angle near the end one piece and into the face of another piece.

20. End nailing…
This is done by nailing through the thickness of one board into the end of the other piece.
Look at figure 10-6 on page 121

21. Flat nailing…
Fastening two flat pieces to one another.

22. Clinch…
After the nail comes through bending it over.

23. Screws…
Screws are by far much stronger than nails. Page 121.

24. Countersink…
A hole drilled deep enough for the head to be under the wood surface.

25. Pilot hole…
A hole drilled for the screw to follow.

26. Procedure…
Page 122

29. Fastening with bolts…
Bolts are even stronger than screws to fasten wood.
They use a nut and washer on the other side of the wood.

31. Bolts…
Procedure on page 124.

32. Fastening with glue…
Glue is a sticky liquid used to hold things together.
Glue is extremely strong. Always use glue but don’t get it on your work.
Procedure on page 124.
Which is stronger glue or bolts?

33. Dowel pins….
A dowel is a small round piece of wood. It is similar to biscuits but more skinny and longer.

34. Now, how do you know which one to use?
How much weight will your project support?
How long do you need it to last?
Do you need to take it apart later?
Do you need to be able to move it around easily?
How much time and effort do you want to spend?
What tools are available to you at the time?