New guy here.  I just bought an 88 Samurai for my son to drive to school.  I've own 2 88's so I couldn't pass up this one when I saw it.  It's had quite a bit of rust repair done to it and when the previous owner had some repairs done to the floor the seats were removed but looks like they lost some of the seat mounting bolts.  The passenger seat only has one bolt in it.  Does anyone know where I can get specific bolts and nuts for the seats or at least know the bolt and nut sizes? 

Most of the bolts are interchangeable, I don't have the specific pitch on hand though.

I would give Trail Tough a call.  They should be able to help you out.