wanting to buy a Predator shaft for Helmstetter

[predator425]

I need a Predator shaft for a Helmstetter cue , I want any predator shaft other than a Z2 ,used is ok

 

[GreenFeltguy]

What pin size on Helmstter ?

 

[predator425]

wanting predator shaft for Helmstetter

I believe it's a 5/16×18