280Z pedal box in a 240Z

Perhaps some of you studying pedal boxes can help me. I'm reassembling my late '70 240, and I'm missing a box of bagged and tagged parts. One of missing parts is the bolt that runs through the box, holding the top of the brake pedal (automatic transmission wide pedal). I'm looking at a M12 size, roughly 90mm length, perhaps a tad less. Thread pitch looks to be 1.5 - can anyone confirm those specs?