Stop in for a cup of coffee

How short can you measure it? Air cleaner stud. Need a above the carb length, just bagged some for Carlisle.
haha thought I deleted it. I just went out 2 1/2" from top of carb through the air cleaner wingnut hole.
An older one would look nice have the used patina look.
Better than a new stud from the hardware store.
If you have one a little longer than 2 1/2 I can always trim it to size.