From:Indnrdr e-mail:indnrdr@yahoo.com
Subject:Streamline rear fender hinge bolt Date:Sat Jul 6 08:08:07 2013
Jay Zanetti used to make these Streamline rear fender hinge bolts (for when you would pivot your rear fender up to facilitate a tire repair).

These appear to be factory originals.

I've never noticed that the opposing studs appear to have different sizes possibly 1/4" and 5/16ths".

Anyone care to venture a guess why?