If that is the butt looks like it may need a little help. (cracked)
The pin looks to be an 18 tpi.
Measure the length and count the threads.
If it's not a full inch sticking out, just measure a half inch and times 2.
the guy has been playing and winning money with that butt for a LONG TIME
told me he cracked it breaking
has no desire to fix it
he is the type of player that could beat everyone but the very best with anything
wish i played like him...
its the cue he keeps in his car
thanks for all the replies
he needed a new shaft for it and i didnt have any that fit