Phil, I had that problem with mine, the welded on nut inside the cowl was stripped. I used another nut on the inside with a slightly different and longer bolt. Worked fine.... just don't look at the bolt head..... and paint them all black so it doesn't show.
LOL
__________________
Gary
Get in, Shu
T Up, Hang
On
!
Member of the Baltimore Built Brotherhood
MY GTO built 4th Week of March 1966
"Crusin' Is Not A Crime"
Keep yer stick on the ice.