u/Gullible-Menu-2771

My 02 Nissan Sentra SE-R Spec V's clutch got burned up, I decided to replace the clutch with a friend who knows much more about cars than I do, clutch went in fine but we're missing a bolt that connects the transaxle to the engine gusset. Looks like bolt 5 in the Haynes manual, 25QRDE engine. I've looked online, and while I can find some bolts that say they fit, the diagrams are unclear and I cannot find specifications to verify fit, nor find another bolt on the car that might fit to find specifications or replacements in person. How can I find specifications/a replacement bolt?