Sigh. First off I am not offended by anyone trying to help. Secondly, the studs you are showing in the first picture look suspiciously like the front of a power brake booster, not a firewall. The nut/washer/stud arrangement you are showing in the second picture are for the clutch bracket, not the brake bracket. And finally, in the last picture I can't see a fastener between the M/C and the brake bracket. There does seem to be an indication of studs between the M/C and the gasket but it's not clear. Two listings for an NOS M/C on the web showed M/C's with no studs. In my first post I said I had researched both the '67 FSM and the '67 parts book. So the last two pictures are nothing new.