Stop light/brake light switch bolt

[Charlie71rt]

71 Ebody manual transmission, power brakes. I am trying to identify the correct bolt that holds the stop/brake light switch to the pedal assembly bracket under the dash. The hole is stripped and I removed a 1/4 28 bolt, the majority of the 1/4 bolts on these cars seem to be 1/4 20. I would like to repair it with the correct hardware. I have the Dave Wise Ebody fastener book but can’t find it in any section. I don’t care about the head identification just the thread.
Thanks everyone, Charlie