There are settings for the clipboard? There is a way to copy control characters? I want to copy some text that contain control characters (example: LF, NUL, BEL, etc...)

Seemly OSX defaults don't let me, if I choose for example a text that is like this:

'abcdNULefg' to copy and paste, it pastes only 'abcd'
You can try using this method.

From the finder menu > special characters > latin.
Once there, select any characters you like and add to favorites.

Also, once copied, 
From the edit menu > Paste and Match style.