I'm having nail dimensions problems?

I need ';3d 1-1/4” Nails';... but what does this all mean? I have nails that the part that goes into the wood is 1 and 1/4 inches long... but what is the head part supposed to measure? I also need to know how thick the shaft part is. The project said I need these nails:





';3d 1-1/4” Nails';


';Home Depot – UPC : 764666143326';





Any help?I'm having nail dimensions problems?
Historically nails used to be sold by the Pence, (England), and the term relating nails to ';penny'; came form that. The higher the number, the thicker the wire used to make the nail. Commonly, 6, 8, and 16 sizes are used in construction in the US and Canada. A 3d nail is much more like a brad than a nail.I'm having nail dimensions problems?
The link below gives actual dimensions for various nail sizes. That said, go to any place that sells nails and ask for 3d 1 1/4'; nails. If they don't know what that means, shop somewhere else. Even if you go to Home Depot, ask for 3d 1 1/4 nails. If you give them the UPC#, they will have to look it up in the computer to find out it is a 3d 1 1/4 nail.
There is really no answer required there are already two that suffice except I would like to say that just going to Home Depot they will be glad to answer this one. You could have some questions that are more technical that the clerks at Home Depot have trouble providing.. But it is much easier to ask them, questions this simple.





Nail sizes they can deal with, asking them how to fix a kitchen sink sometime comes up with different answers:)
These are finish nails, and need to have a dimpled head. You should not have much of a problem if you just go to Home Depot and buy the correct nails. I dont really see your problem. The d means penny. So you need 3 penny nails. Very common.