Gus the easiest way may be to contact CRKT and simply see if they can send you a new one like the old one. However, many times if you change out a pivot on a user knife, especially on a foreign made knife you may end up needing to increase the diameter of the pivot pin to move it a size like a 1/8" to a 3/16" one which you can buy at a place like knifekits or Texas knifemaker supply or Jantz supply. These threaded barrels will in all likelihood be longer than needed. But they are stainless and strong and pre threaded with screws. Its very often the case that in a repair on someones knife or a rebuild someone sends me of a Spyderco that I'll cut one of these barrels to the length I need to fit the knife in question. I assume that because this is a CRKT knife that you are speaking of screws. In all likelihood the knife you have is made in Taiwan and probably uses a unique diameter pin not sold at most supply houses here. This is not always the case though. I've been surprised a time or two.
You can do this quite simply with simple hand tools. A small pair of vice grips, a thin kerf cut off disc on a mandrel with a dremmel and some safety glasses can do the trick if you first stick the barrel through the blade mounted flush on one side with the screw on it and mark the other with a scribe or pencil. With a bit of finesse you can make the new barrel work as good or better than the factory one once you cut off the excess using the thin kerf disc, which can be bought at any Lowes, Sears, or Wal-Mart in the dremmel section.
In most cases when bumping up the size of a pin in a knife that uses screws you will also have to increase the size of the recess that the screws seat into the handle where they tighten in snug. In worse case scenarios you can just buy the carbide drill and a reamer in the size you need for the new pivot and knock it out yourself using a small bench mounted drill press. Nothing short of a carbide will drill out a hardened blade though.
STR
