What is the thickness and thread size?
PETER G It's a 5/16" shaft with 24tpi threads(about an inch and an 1/8 of them).
The screw on tip end is 6mm.
KRIS C It is 5/16" diameter and 5/16-24 thread. It is a fine thread and not a course one.
JASON F its an 8mm shaft with thread size of 8x1.00. Hope this helps.
PETER S 9/32 spring stainless steel shaft with 6mm thread or 3" stainless steel barb. 30" long