aint none threaded that i know of the tips just slip on and ya glue em or tack em on the shaft and if ya want ya can put a pin through them to help keep the tips on other then that unless they somethin we dont know lol they is no threads
The end of the shaft has an adapter glued on it that has male threads if you are using a point that threads on (ie. Cajun Little Stinger). I have not checked it to be sure, but it appears to be 5/16''x18 threads. The screw on point has female threads of the same size.