Original Shaker Trim Ring Stud Length

Can anyone take a measurement and give me the stud length off an OE shaker trim ring? A picture would be super helpful.

Thanks!

Floyd
I removed a nut, fished a small wire in the tub stud hole opening to the base of the trim ring and it measures 5/16 inch.
Not enough hands to hold the light, the wire, the tape and a camera for a picture, but I'm sure I recall 5/16 being correct when measuring to replace broken studs once before.

Thanks Terry!