Where did trent reznor get the name of his band "Nine Inch Nails"?

Question

Where did trent reznor get the name of his band "Nine Inch Nails"?

Answer 1

As far as I know he said he tried a bunch of names and ended up with this one because this sounded the best.

Although the answer above fits perhaps better some of his lyrics. Perhaps it's both.

Answer 2

He was a house builder or dry waller.

Answer 3

I think the nails used to crucify Christ were 9 inches long.

(Supposedly...if you believe in that.)

Answer 4

From Reznor's own site:

The origin of the name Nine Inch Nails has been widely speculated over the years. Some argue it refers to the length of a coffin nail, while more imaginative souls liken it to the size of Trent Reznor's phallus. Rather boringly, however, it has no profound meaning. After tossing around 200 monikers for several weeks, Reznor found that Nine Inch Nails kept ringing in his head. He has also quipped that it looked great in print, was easy to abbreviate, and "it's a lot cooler name than Trent Reznor."