What size is the seat screw?

[WindyOne]

I am going tomorrow to buy a stud and nut to replace the seat screw. I think the screw is 1/4-20 but I am not sure and don't want to remove it until I have the stud to put in its place.

 

[NamVet]

seat screw

I don't use it, haven't use one for over 30 years on any of my bikes, never had a problem and in the old days it made it faster to get to the battery an other electrics. That is the first thing I removed from my 2014
Tri Glide and tossed.

 

[WindyOne]

Thanks