[Roadsters] Rear Bumper Bolts

[Charles Hubbard]

Can someone verify the thread size for the left/right bumper bracket to the
frame bolts on a 1964 SPL310.  I started installing my re-chromed bumper
using 24 thread bolts (same as what came off).  The right rear bolt went on
easy but the right front bolt was a bitch to tighten.    The left side bolt
will not even thread.  This threaded hole is very close to the body so there
is no way to see what's going on.  Can someone with a frame off verify the
correct bolt and thread size for me?  I remember this bolt being a pain when
I removed it and chalked it up to rust.  Now I'm worried that Nissan used
two different threads and I just forced a 24 thread on.

 

Charlie

1964 SPL310