Seat belt bolt sizes

[NJ C10 Guy]

Originally Posted by ddr11

I may be wrong but seems like I remember them being 7/16 Fine thread

That was it. The threads were pretty dirty, but once they were cleaned the bolts went right in. On the last retractor one now. I can't get the stupid tap started in the hole I drilled out. I used a 3/8" bit, but I was supposed to use a 27/64" bit. 3/64" you wouldn't think would make that much difference...