SO does no one know where to find this bolt? I have looked at Jersey Cycles and Toronto Cycles and now defunct SRP. In my research I found this bit of data:
"SRP makes three types of titanium replacement bolts for the Record rear derailleur. They are all machined Titanium 6Al-4V rod. The first is a mounting bolt replacement that changes out the 20.5 gram for a 10.5 gram Ti one. Installation follows the same description used for the other mounting bolts described above and requires a small flat bladed screwdriver, bare hands and about 40 seconds. It will replace the mounting bolt used in the Record, Record OR and Chorus. The second bolt replaces the 13 gram steel pivot bolt with a Ti replacement that weighs 7.5 grams and will work in the Reocrd or Record OR only. The pivot bolt is sold only as part of a two piece kit that includes the Ti mounting bolt. Installation of the pivot bolt follows steps used for pivot bolts described above and requires a 5mm hex wrench, bare hands and less than 1 minute. SRP also makes Ti replacements for the steel pulley bolts (axles) which weigh 7 grams in the original steel and 4 grams in Titanium. Sold in pairs, the pulley bolt installation requires a 4mm hex wrench, bare hands, about no time and will work on the Record, Record OR and Chorus."
It appears that the bolt I am looking for is called a pivot bolt and SRP did make one out of Ti at one time. Is there no other manufacturer that produces a Ti or ALU replacement to this bolt????