A few years back, my 63 guilia spyder clutch got stuck from sitting. I was able to start the car with the clutch depressed, lift off the clutch and go but i could not shift into another gear. I took the clutch cover off to inspect and left it off while i freed the clutch up. I did this by popping the clutch under load. my exact technique was using reverse up a hill. a few tries and it released. lucky i guess. anyway i left the cover off while the car was stored under cover. the car shifts fine but now that i wish to put the cover back on, but i can't find the bolts. Does any know the specs on this bolt?