Very classy headboard.  I screwed this right onto the current metal bed frame we have and it's not going anywhere.  The hardware was included in the package for screwing the "legs" to both the back of the headboard and to the bed frame.  
I did not have any problems with the details being out of line or not straight like others had mentioned.  No problems whatsoever.  Straight nail heads all around.  
The color is more gray than beige but it worked well in our gray/beige colored guest bedroom.