Holder and concrete anchor assemblies

1. A concrete anchor assembly, comprising:

a) an anchor body including a rod portion and a head portion;

b) the head portion extending laterally from the rod portion, the head portion including a threaded bore;

c) the rod portion including an internally threaded bore, the rod body portion including an outside thread; and

d) a holder for the anchor body, the holder including an opening opposite the head portion configured to receive a fastener to attach to the anchor body.

2. A concrete anchor assembly as in claim 1 , wherein the internally threaded bore includes multiple diameters.

3. A concrete anchor assembly as in claim 1 , and further comprising a nut threaded to the outside thread of the rod portion.

4. A concrete anchor assembly as in claim 1 , wherein the holder includes a sleeve portion threaded to the rod portion.

5. A concrete anchor assembly as in claim 4 , wherein:

a) the holder includes a base portion; and

b) the sleeve portion extends to the base portion.

6. A concrete anchor assembly as in claim 3 , wherein:

a) the nut includes a first thread and a second thread; and

b) the first thread for threading to the rod portion.

7. A concrete anchor assembly as in claim 6 , wherein:

a) the second thread includes a major diameter larger than a major diameter of the internally threaded bore; and

b) the second thread includes a major diameter less than a major diameter of the outside thread.

8. A concrete anchor assembly, comprising:

a) a holder;

b) an anchor body attached to the holder;

c) the holder including an opening for providing an access opening for a threaded portion of a fastener to attach to the anchor body;

d) the anchor body including a bottom opening; and

e) a split body disposed inside the anchor body, the split body including a threaded opening disposed over the bottom opening.

9. A concrete anchor assembly as in claim 8 , wherein the anchor body includes a flange portion.

10. A concrete anchor assembly as in claim 8 , wherein the anchor body is threaded to the holder.

11. A concrete anchor assembly as in claim 8 , wherein:

a) the anchor body includes a head portion and a body portion; and

b) the body portion includes outside thread.

12. A concrete anchor assembly as in claim 11 , wherein the body portion is threaded to the holder.

13. A concrete anchor assembly as in claim 8 , and further comprising nails attached to the holder.

14. A concrete anchor assembly as in claim 8 , and further comprising nails attached to the anchor body.

15. A concrete anchor assembly as in claim 9 , and further comprising nail shafts attached to the flange portion.

16. A concrete anchor assembly as in claim 11 , wherein the head portion includes threaded bore.

17. A concrete anchor assembly as in claim 8 , wherein the holder includes a plug portion with the opening.

18. A concrete anchor assembly as in claim 8 , wherein the bottom opening communicates with the opening of the holder.