alt Hacker NewsYou don't use CNC for making a billion individual screws. These would have their heads formed by being stamped in a die, just like phillips, robertson, security torx or any other screw heads.
You don't use CNC for making a billion individual screws. These would have their heads formed by being stamped in a die, just like phillips, robertson, security torx or any other screw heads.
Not for a billion. But especially for these it makes perfect sense, and given the details on the screw there is no doubt that it was made in exactly that way. The head was first milled and then there seems to have been a wire brush pass afterwards which got most but not all of the mill marks.