1. 1.a. Item has external threads Go to 2 (screws) b. Item has no external threads Go to 7Go to 2 Go to 7

2. 2.a. Item has a pointy tip Go to 3 b. Item does not have a pointy tip Go to 5

3. 3. a. Item has a flat top Flat head wood screw b. Item doesn’t have a flat top Go to 4

4. 4.a. Item has an oval head Oval head wood screw b. Item has a round head Round head wood screw

5. 5.a. Item has a flat head Flat head machine screw b. Item doesn’t have a flat head Go to 6

6. 6.a. Item has an oval head Oval head machine screw b. Item has a round head Round head machine screw

7. 7.a. Item has internal threads Go to 8 Go to 8 (nuts) b. Item has no internal threads Go to 11 Go to 11 (nails)

8. 8.a. Item has wings Wing nut b. Item has no wings Go to 9

9. 9.a. Item has a cap Cap nut b. Item doesn’t have a cap Go to 10

10. 10.a. Looking down on the hole item is 4 sided Square nut b. Looking down on the hole item is six sided Hex nut

11. 11.a. Item has a tapered head Casing nail b. Item doesn’t have a tapered head Go to 12

12. 12.a. Item has a large flat head Roofing nail b. Item doesn’t have a large flat head Go to 13

13. 13.a. Item has a small flat head Common wire nail b. Item has a disc below it’s head Scaffold nail

14. Casing nail

15. Flathead machine screw

16. Common wire nails

17. Cap nut

18. Flathead wood screw

19. Roofing nail

20. Square nut

21. Oval head wood screw

22. Round head wood screw

23. Wing nut

24. Hex Nut

25. Oval head machine screw

26. Scaffold nail

27. Round head machine screw