it is a 5/16 carriage bolt. I am also enclosing a picture of ,I don't know what to call it. It was used to fill one of those 7/8" holes in the rad support of a 62 GMC. must have been an orig installation by looks of it. it is 1 3/16" dia. perhaps you can find it in a parts book .
ron
By
rondavid at 2011-11-30
By
rondavid at 2011-11-30
maybe it is one of those rare piece's that perhaps my friend in Mo. may be interested in for his rare truck