The assembly manual does not list a part number for the bolt but does specify bolt torque. As there is orange paint on it, had to be in place at engine assembly.
The same assembly procedure was employed for the BB/TH400 kick down harness. No bolt part number listed; manual states "trans attaching bolt'. Automatics were assembled to the engine during final assembly. Appears they removed and re-installed the bolt a few hours after it had been initially installed.
Excellent question!